COLD WEATHER ISSUES

[Reef Pilot]

During the winter, instead of keeping rodi water on hand, why not produce the water just before you do the water change? I do that all the time anyways, as it only takes 1 day to produce enough rodi water for a water change. And just keep a bucket in the house, enough for evaporation replenishment.

I assume your rodi must be in the house, as no way it could work in -30.

[ramasule]

You will need major insulation and heaters.

Best to do what Pilot said and make it before you need it.

My recommendation would be to get one of those hang on float valves and let it drain into a bucket that you are using that is sitting over a drain preferably.

https://www.amazon.com/Eshopps-AEO19.../dp/B00BUFV2GK

[SoloSK71]

Couple of options.

1) A large enough volume with sufficient motion may not freeze. You would have to do the calculations to double check.

2) Build an insulated "mini-shed" around the storage containers and combine it with the pump and you will need a lot less energy. Again, need to do some calculations to make sure.

3) The "mini-shed" plus a heater on a timer, just enough to keep from freezing.

All of this and you are still going to have to do a lot to heat the water up for any significant water change or top off.

Charles

[lyall12]

Is the garage insulated and in use?

I'm in Calgary with an attached insulated garage. We don't have a heater of any sort in the garage, and nothing ever freezes in it. Heat transfer from the house and vehicle is always enough to keep it above freezing and melt snow/ice off of car overnight.

What about using a large cooler combined with a small heater?

I know some coolers can be very efficient at keeping temperatures stable. Some claim to keep ice solid for a week. Throw a small heater in and you may be set indefinitely.

[zhasan]

Originally Posted by Reef Pilot

During the winter, instead of keeping rodi water on hand, why not produce the water just before you do the water change? I do that all the time anyways, as it only takes 1 day to produce enough rodi water for a water change. And just keep a bucket in the house, enough for evaporation replenishment.

I assume your rodi must be in the house, as no way it could work in -30.

I thought of that.. but I fear the time when I need to do a sudden water change. My RODI takes forever to produce too..

Originally Posted by SoloSK71

Couple of options.

1) A large enough volume with sufficient motion may not freeze. You would have to do the calculations to double check.

2) Build an insulated "mini-shed" around the storage containers and combine it with the pump and you will need a lot less energy. Again, need to do some calculations to make sure.

3) The "mini-shed" plus a heater on a timer, just enough to keep from freezing.

All of this and you are still going to have to do a lot to heat the water up for any significant water change or top off.

Charles

Thanks Charles. Agree with all your points. Have considered building an insulated closet in the garage.

[zhasan]

Originally Posted by lyall12

Is the garage insulated and in use?

I'm in Calgary with an attached insulated garage. We don't have a heater of any sort in the garage, and nothing ever freezes in it. Heat transfer from the house and vehicle is always enough to keep it above freezing and melt snow/ice off of car overnight.

What about using a large cooler combined with a small heater?

I know some coolers can be very efficient at keeping temperatures stable. Some claim to keep ice solid for a week. Throw a small heater in and you may be set indefinitely.

You've given me something to think about and work with here.

Garage is insulated.

It is in use. I park my car inside and the snow is gone by the morning.

After reading your post I paid attention to the floor and the water is not frozen or icy.

What I've noticed is that.. I have a bottle of Olive oil that seems frozen or atleast by the looks of it.. maybe its just curdy now. The pop cans don't freeze at all but they are chilled to the maxx.

I'm thinking If I insulate the water containers and build a small insulated cabinet for the RO/DI I may be able to get away in the -30 plus weather.

[SeaHorse_Fanatic]

I have a friend in Powell River who built an insulated wooden box outside for his sump and water change system. Since it's well insulated, its had never had any temperature issues, (neither too hot nor too cold). Something like this would be ideal for use in your garage or outdoor space. He stained the wooden box so it looks nice and not ghetto.

Anthony

[lyall12]

Originally Posted by zhasan

You've given me something to think about and work with here.

Garage is insulated.

It is in use. I park my car inside and the snow is gone by the morning.

After reading your post I paid attention to the floor and the water is not frozen or icy.

What I've noticed is that.. I have a bottle of Olive oil that seems frozen or atleast by the looks of it.. maybe its just curdy now. The pop cans don't freeze at all but they are chilled to the maxx.

I'm thinking If I insulate the water containers and build a small insulated cabinet for the RO/DI I may be able to get away in the -30 plus weather.

If the snow/ice is melting off your car over night, you're all set I think.

I've got cases of water, juice, etc out there. And it never freezes, even when near the main door. Makes a great beer fridge.

You can probably get away with storing without freezing. Especially if you add a small pump for movement.

The water will likely be near freezing during the winter. It would take a bit of effort to get it up to temp for water changes, but doable if you bring what you need inside first.

If you're putting the ro/di unit in the garage you'll definitely want to insulate it. The ro membrane is less efficient at colder temperatures. I lose at least 10%-15% production with the rodi in the house just from the change in incoming water temp in the winter. I know some people run the water line through a sort of heat exchanger before the rodi in the winter, or carefully tie in hot water as well.