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View Full Version : Mixing Saltwater and getting it back into your tank....


Simmy
10-24-2013, 05:17 PM
Hi there, I'm new to reefing....been lurking for a few weeks.

What equipment do you use to mix saltwater? Do you simply just add the salt to a bucket of water and "stir" or are you using a powerhead or circulation pump to mix it all up? How do you get the water back into your tank if you are mixing up a large batch of water too?

Do you have recommendations on what equipment to use? I read that the Maxi-Jets are 3 in 1 pumps that could be useful for this?

Comments suggestions?

Slyguy00
10-24-2013, 05:30 PM
Theres lots of ways to do it. I personally just add my water to my 5 gallon bucket, then add my salt, stir for a few minutes then let it sit for 8 hours, or a day. Make sure your p.H is correct and your temp, then just gradually start adding water to your tank. If im doing a bigger batch of water I just use more buckets. Thats how I do it anyways, I dont find the need to use a powerhead to mix it up.

Dearth
10-24-2013, 05:43 PM
I mix a batch in a 40 gallon brute garbage can on a dolly and use a power head to mix I leave it going all the time. I don't use a heater to maintain temp just room temperature

The Guy
10-24-2013, 05:59 PM
I mix ro water and the salt in a 25 gallon barrel I have, you can use a power head or whatever you have to mix it. I usually put a 150 watt heater in with it while it's mixing. After it's well mixed at the temp. you want add it to your system. My tank is 90g with a 50 g sump so I figure I have approx. 100 gallons of water when you figure the rock displacement and the fact the sump is running half full.
I shut off my return pump, then suction out of all but a couple of inches water and detris I can, then all my new water goes into the sump. Been doing it this way since set up as advised by friends that were already into reefing. Seems to work well with no ill effects. Maybe others can chime in on how they do water changes.

asylumdown
10-24-2013, 06:10 PM
back in the day when I was only using tap water for my tank I would haul out a 20 gallon garbage bin and put it right in front of the tank. Then I'd use one of those Python aquarium vac things with an attachment that would hook up to the bathroom sink to fill it. I'd mix the salt with a huge pasta spoon while it was filling.

I'd only wait until the salt was completely visibly dissolved before using a bucket to hand-ball the water in.

Obviously this was a time consuming and messy process, and if you can use RO water, it's better (Calgary's tap water reads around 140TDS on my meter pretty much constantly, though I hear Vancouver's is much better). If you've got the space for something a little more permanent where you can set up a bin that can hold several water changes worth and transport the water using pumps, you'll be far more likely to still have your tank in a year I think.

On my current set-up I have a dedicated sump chamber for water changes. I can isolate 2/3 of my sump from the flow of the tank using valves, and then drain the 50 gallon chamber where all my reactors are using a permanently installed pump with an outlet at a drain built in to my cabinet. I have another pump in my R/O reservoir in the basement that refills the water change chamber with fresh water, and while it's filling I mix in the appropriate amount of salt. I've got a koralia in that chamber that helps mix it, but at most I wait until the salt is visibly dissolved and I don't see anymore of that distortion of light you get when fluids of different densities mix. Some people like to wait much longer before using their freshly mixed salt, but I've been using mine immediately after mixing now from day one and I've never seen any deleterious effects from it.

Werbo
10-24-2013, 06:38 PM
It is great question as month after month of water changes can become boring and you want to streamline the process as best you can.

Any powerhead or pump will work and a hose (ie. new garden hose) dedicated to water changes. Obviously the bigger the faster.

I do 40G water changes using a 44G Brute can and old Hagen 802 powerhead to mix the water and pump old water to the bathtub and then new water from the Brute into the tank. Takes about 34-40 minutes.

Currently looking for a large CHEAP submersible pump (eg. Mag 12 or 18, Eheim 1262) to make the process faster.

Coralgurl
10-24-2013, 07:14 PM
My water/mixing is done in the basement. I use 2 30 gl brute cans, (one for fresh water top up, one for salt). I keep both filled at all times, when salt is needed, mix up a batch, I have a power head and heater going. I then pump into 5 gl jugs and carry upstairs. When I find a pump that can push the mixed water up, I'll switch over.

Find the most effective, efficient way to get your mixed water to the tank from the beginning! Makes water changes much easier and will keep you motivated to keep them up!

As you are new, remember to top up with fresh water only as the salt does not evaporate.

asylumdown
10-24-2013, 07:25 PM
My water/mixing is done in the basement. I use 2 30 gl brute cans, (one for fresh water top up, one for salt). I keep both filled at all times, when salt is needed, mix up a batch, I have a power head and heater going. I then pump into 5 gl jugs and carry upstairs. When I find a pump that can push the mixed water up, I'll switch over.

Find the most effective, efficient way to get your mixed water to the tank from the beginning! Makes water changes much easier and will keep you motivated to keep them up!

As you are new, remember to top up with fresh water only as the salt does not evaporate.

How far would the pump need to send the water? I'm using 2 Aqueon Quiet flow 8000s to pump my water from my basement, but the barrel of water is directly under the tank in the utility room. One is hooked up to the Auto-top off system, and one is for water changes. I switched because the eheim pump I was originally using for my auto-top off couldn't push against that much head pressure if my reservoir was less than half full. The Aqueon (which was hella expensive!) has enough power to keep pumping even when the reservoir is essentially empty. I'd say I have between 10-12 feet of head pressure when you take in to account to tubing doesn't go straight up.

e46er
10-24-2013, 07:55 PM
I have a 55 gal drum with a 1200 gph power head to mix up salt I throw a heater in day before a WC. I have a T off my closed loop pump so I open a valve and it pumps water out of tank then and use a mag 9.5 to pump water from my mixing barrel to the tank.

40 gal change takes around 30 min but I don't need to stand and watch it

gregzz4
10-24-2013, 08:06 PM
You didn't mention how much water you're going to be mixing for your waterchanges (WCs)

I use a maxi-jet (MJ) 600 and 900, and a 100w heater in my 20g mixing tank. I prefer to have the new saltwater (NSW) the same temp as the DT before adding it
How much water I'm making dictates whether or not I run both powerheads or just one. One is on the bottom and the other half way up

I fill the NSW tank with RO water, turn on the pump and heater, and add the salt a few cups at a time and mix with a stick to disolve it
I think it was Myka who mentioned once about adding salt to cool water to avoid precipitation. I found this to be true and my new saltwater (NSW) doesn't get cloudy anymore as it did when I added the salt to warmed up water

I let it sit overnight before using it. The powerhead's agitation helps with pH as it's oxygenating the water
The next day, before using it, I test the specific gravity (SG) of the NSW, but don't bother testing the pH

I don't need to use a hose to add my NSW as I have my mixing tank higher than my sump. I installed a bulkhead in the bottom of the 20g and, when ready to add, I just open a valve and fill away
Makes water changes a breeze so I never dread them and they get done regularly

You don't need a heater. Up to you
A MJ can have a hose attached so after you use it for mixing, you could use it to pump the NSW
You can make it as simple or as complicated as you like. Just keep in mind as Coralgurl stated, make it as easy as possible so you don't put it off

Simmy
10-24-2013, 08:11 PM
Thank you for all the Replies and suggestions...I should note that I have a RSM250 so I don't have a sump underneath my tank. If I don't use RO water (live in GVRD) is it advisable to use a water conditioner still or should the water be fine if its sits for a day circulating in a bucket/container (with or without salt) before being added to the tank?

asylumdown
10-24-2013, 08:32 PM
I have a 55 gal drum with a 1200 gph power head to mix up salt I throw a heater in day before a WC. I have a T off my closed loop pump so I open a valve and it pumps water out of tank then and use a mag 9.5 to pump water from my mixing barrel to the tank.

40 gal change takes around 30 min but I don't need to stand and watch it

You guys who heat the water the day before are way better at pre-planning your water changes than I am lol. I usually don't know I'm going to be doing one until about 8 second before I start.

asylumdown
10-24-2013, 08:52 PM
Thank you for all the Replies and suggestions...I should note that I have a RSM250 so I don't have a sump underneath my tank. If I don't use RO water (live in GVRD) is it advisable to use a water conditioner still or should the water be fine if its sits for a day circulating in a bucket/container (with or without salt) before being added to the tank?

I think that depends on what your area adds to the water. I'm pretty sure you can check. If it's just straight chlorine then it will all have off-gassed after 24 hours so long as the container you keep it in is open to the air and being agitated. If they add chloramines then you definitely need a water conditioner, if you can't find out for sure what they always do, then a water conditioner is a good idea just to be safe.

I would probably just use it either way. There's very little harm to using it. It converts chlorine gas (what they add to kill things) into chloride ions, which are in such abundance in your aquarium that I bet an analytical chemistry lab would have a hard time measuring the increase. When it's exposed to chloramine, it breaks off the chloride ion, and irreversibly binds to the ammonia in a non-toxic form that is still available to your nitrifying bacteria. Unless you've got copper in your tap water that Prime could reduce to an even more toxic ionic form (a huge problem that would require an RO unit anyway), I think adding a water conditioner can only reduce the risk associated with using tap water. Seachem even claims that it does something to reduce the levels/effect of nitrate in water, and since Canadian regulations allow up to 10ppm Nitrate reported as N in tap water, which is about 44 or 43ppm of actual Nitrate, to me that would make it worth using it. The amount of nitrate will vary over the course of the year, but the allowable limit for it is still many times higher than you want in your tank if you'd rather grow corals than algae.

gregzz4
10-24-2013, 09:43 PM
A drawback to using conditioners is some can skew NH3 test results

We're in Vancouver so no chloramines and, as Adam stated, you can just let the chlorine off-gas with a powerhead

Simmy
10-24-2013, 09:45 PM
It is great question as month after month of water changes can become boring and you want to streamline the process as best you can.

Any powerhead or pump will work and a hose (ie. new garden hose) dedicated to water changes. Obviously the bigger the faster.

I do 40G water changes using a 44G Brute can and old Hagen 802 powerhead to mix the water and pump old water to the bathtub and then new water from the Brute into the tank. Takes about 34-40 minutes.

Currently looking for a large CHEAP submersible pump (eg. Mag 12 or 18, Eheim 1262) to make the process faster.

You can pump your old water to your bathtub with the Hagen 802? What is the head rate for that pump? How far is it from your tank to tub? And how thick is the tube/hose you use? Is it vinyl tubing...1/2 inch inside diameter? Ideally that is what I'd like to do....the bathroom is about 20 25ft from the tank.

Simmy
10-24-2013, 09:54 PM
A drawback to using conditioners is some can skew NH3 test results

We're in Vancouver so, as Adam stated, you can just let the chlorine off-gas with a powerhead

Thanks for the detailed write up of your process! I understand that conditioners can also cause the skimmer to over bubble too. When I first got the water/liverock into the system it was conditioned with Prime and the skimmer would bubble like nuts even at the lowest air setting so I had to leave it off. after about a week or so I turned it back on and I could adjust the skimmer bubbles better to collect in the cup.

I love all the ideas I'm getting here! Apreesh the help!

Coral Hoarder
10-24-2013, 10:25 PM
i mix salt with a mesuring cup int a 5 galon bucket add declorinator test and away we go

Cal_stir
10-24-2013, 10:32 PM
I keep a 30 gal batch going at all times, I use a 600gph pond pump that pumps the water to a manifold where I valve it back into the tank for mixing and valve it directly to my sump for filling, I also use a heater and mix for 24 hrs before using, I do WC twice a week.

Werbo
10-24-2013, 11:36 PM
You can pump your old water to your bathtub with the Hagen 802? What is the head rate for that pump? How far is it from your tank to tub? And how thick is the tube/hose you use? Is it vinyl tubing...1/2 inch inside diameter? Ideally that is what I'd like to do....the bathroom is about 20 25ft from the tank.

Just a standard green vinyl garden hose. Fits the Hagen nozzle perfect. Bathroom is about 20 feet. Takes 30-40 minutes total including clean-up

asylumdown
10-25-2013, 12:06 AM
Just a standard green vinyl garden hose. Fits the Hagen nozzle perfect. Bathroom is about 20 feet. Takes 30-40 minutes total including clean-up

Yah if it's mostly horizontal/downsloped I don't think this pump would have any issues whatsoever. 20 feet uphill might be a different story

Aquattro
10-25-2013, 12:08 AM
I siphon my tank to the bathtub with a 50ft hose, with the tank end measured to drain 50g exactly. I then take the tub end of the hose to the 50g mixing barrel, hook it to a MAG12 and plug it in. When it sucks air, I'm done. Takes about 20 minutes.

Werbo
10-25-2013, 12:15 AM
Yah if it's mostly horizontal/downsloped I don't think this pump would have any issues whatsoever. 20 feet uphill might be a different story

Display tank is 2-3ft above the bathtub so that helps too. But when I drain my sump it takes about the same so the Hagen has more than enough juice

asylumdown
10-25-2013, 12:28 AM
I siphon my tank to the bathtub with a 50ft hose, with the tank end measured to drain 50g exactly. I then take the tub end of the hose to the 50g mixing barrel, hook it to a MAG12 and plug it in. When it sucks air, I'm done. Takes about 20 minutes.

How do you fill that mixing barrel? You use R/O right?

Aquattro
10-25-2013, 01:42 AM
How do you fill that mixing barrel? You use R/O right?

Yes, I have a RO line that I unroll when needed.

Simons
10-25-2013, 04:31 AM
a topic that everyone with an aquarium will deal with.

I have a 100Gal food grade vertical plastic container in my furnace room, RO/DI unit in the same room. It will take a full 20 hours to fill the tank, I have an 400 GPH pump submerged to the bottom and leave it running all the time.

I add approx 9 full cups from my trust salt measuring dispenser, let it sit and mix for a day and verify salinity. I do use a heater since the ambient temp of my furnace room is a few degrees lower than the rest of my basement.

I have 30 feet of 0.5 inch tubing I hook into another submersible pump for water changes, after siphoning out about 80 Gal. I due 80 to 95 Gal every two weeks, but I have over 300Gal of total water volume.

Since I have limited space in my furnace room I went with a 23" wide but 65" tall container. It was just dump luck that the power cords attached to my heater, and pumps just pops out the top of the removable lid. I forgot about that part when I got the tall tank, thinking I was all smart n stuff :redface: but...it worked in the end.

Spyd
10-25-2013, 12:22 PM
I have a dedicated water-change tank / sump tank on my system. The tank sits up over my main sump and is tee'd off my main pump. There is a single drain line that goes down to the skimmer section of my main sump.

For water changes, I simply turn off the valves on the return line and drain. I have one other plumbing line that I drilled near the bottom of the tank. It connects to a vinyl hose that I place into my floor drain in the basement. I simply open that valve and my water change tank drains entirely to the floor drain, minus about 1/8" of water that I use a Sham Wow to remove the rest. lol.

I then close the drain valve and place my RO/DI line in the tank and fill it. I have a float valve to stop the water when it fills the tank. I also have a perfect measurement of salt. 17 even cups and that water is 1.025 on the dot every time. I add a powerhead when adding the salt. Stir it up and then add a heater. After 1 day, I remove the powerhead and heater, turn the return line and drain line valves open and water change is done.

Physical labour is about 10 minutes of my time. No buckets needed whatsoever and I have 45G of water changed out for my entire system.

Below, you can see the water change tank at the top right of the photo. Return line and drain line are on the right of the tank. You can just see the floor drain line at the bottom of the tank. It goes down towards the skimmer area and you can see where the hose is attached.

http://i1160.photobucket.com/albums/q489/spyd80/Sump008_zps1aaa5a69.jpg

04V10
10-25-2013, 01:02 PM
I have another simple setup. I have a 5 gallon pail with a power head and heater in it. Fill with RO/DI water, add salt, test salinity and wait for it to get up to temperature. Then I syphon my water into another 5 gal pail. Put in a pump with a hose attached in the fresh saltwater, route hose into tank, turn on pump. When saltwater is back in tank. Shut off pump. Simple, and I don't have to lift anything causing any potential spills.

lastlight
10-25-2013, 03:26 PM
i do what most people here do.

i have a mixing tank with a powerhead and heater in it. usually let my new water mix for a day minimum although i've found even a few hours is just fine. i vacuum my sandbed upstairs and then add the new water to my sump in the basement with a mag 12 while i turn my return pump back on.

Simmy
10-28-2013, 06:49 PM
Thanks for everyones suggestions.

My plan is to use a plastic bin 15 gallons to mix the saltwater in and leave a power head in for 24 hours for aeration. I'll use a pump to pump the old water out and into a bathtub with clear vinyl tubing about 30ft away. I'll add the new salt water by wheeling the container to the tank and use the same pump to get the new water in with a shorter vinyl cable.

Does anyone see problems doing it this way?

lastlight
10-28-2013, 07:56 PM
when i ripped my old bathtub out a small length of plumbing connecting it to the abs main was made of metal. if you've got an old bathtub maybe send a bit of freshwater down the drain after the saltwater lol.