Drill a siphon break in your return lines?

[DAVE]

Originally Posted by Hustler

I was thinking this as a first option aswell, i need some kind of 1 1/2" threaded fittings and then try to either make a manifold of 3/4 Lok lines or use 45's as high as the overflows???
but keep it all black abs...

You should not be using ABS in any salt water tank, PVC pipe only.

[Hustler]

Originally Posted by sphelps

ABS just has better chemical resistance, it doesn't leach anything, a simple myth.

From my ABS thread just a few posts down....

[Hustler]

Well i went with the extentions
Im happy with em but im getting micro bubbles and i assume its them causing it so Ill have to glue them together... but i did a test and only lost 10 gallons and the ATO should cover that so i "should" be home free in a power outage

[BlueTang<3]

Originally Posted by Hustler

Well i went with the extentions
and the ATO should cover that so i "should" be home free in a power outage

I dont understand this ? You dont want your sensors of the tunze in the display, keep them in the sump.

[BlueTang<3]

If your really concerned about drain back. I have always thrown in a check valve more so on the fact my skimmer is very sensitive to water levels and if the pump fails i don't want skimmate everywhere. The Wye valves are really good ones.

http://www.bulkreefsupply.com/store/...s/check-valves

[Hustler]

oh no, Sensors in the sump... but the water level would go down there in the event... so when the power kicks back on the ato would fill the missing water till i got home and had to add salt...
My sump drains to the sewer so any extra water is just gone lol

[BlueTang<3]

Originally Posted by Hustler

oh no, Sensors in the sump... but the water level would go down there in the event... so when the power kicks back on the ato would fill the missing water till i got home and had to add salt...
My sump drains to the sewer so any extra water is just gone lol

That seems dangerous. I don't know if you realize the tunze will only pump for max 5-10 mins then cut off and go into a safety mode as a backup. 10 mins of pumping with the pump is not all that much water. I would re consider your plans here.

[Hustler]

Originally Posted by BlueTang<3

If your really concerned about drain back. I have always thrown in a check valve more so on the fact my skimmer is very sensitive to water levels and if the pump fails i don't want skimmate everywhere. The Wye valves are really good ones.

http://www.bulkreefsupply.com/store/...s/check-valves

Im looking into checks... I need to add 2 to my system, My skimmer is seperate to my return so he will be just fine with a water drop.
You need to be an engineer to do this hobby lol....its going on my resume lol

[Hustler]

I wonder if they would be ok submerged? then i could put them into my overflows and not have to see them or add them too far down my lines?