Recirculate water or not?
norcalfrank Member Posts: 1,047 ✭✭✭
in DIY Tanks
I am building a 4' tank that will have a separate scavenge tank. I plan on heating only the scavenge side, which will be about 25-30 gallons of water. Main tank will hold about 250-275 gallons of water. Do you guys think I need to have a way to circulate the water out of the heated part of the tank into the main tank to help heat or at least warm up the main tank, or just heat the the scavenge side and spray that water on the top? If I do that, will the water on the top be warm enough for long enough to hydrate the film correctly? Thanks guys.
Not ever hit them with a part, should be fine. The bubbles would be bad coming up under the film.
I have elements only in my scavenge side. I plumbed a small spa circulation pump between the drains and it keeps the whole thing warm.
As far as doing circulation in this tank, I would just put a pipe off the pump discharge going directly into the tank, and ball valves to direct the water to either the body of the main tank, or the spray bar. Then if needed, I could quickly circulate 25-30 gallons ( about 10% of my tank volume) very quickly, or even bleed off some pressure to the spray bar if the pressure is too great for what is needed.
Insulation goes a long way toward saving you money.
more for the "full timers"?
I'll go days at a time without even turning my tank on.
Simple fact is that electricity costs around $.10 a kw/hr no matter where you are at. 2 4500 watt heaters take 9kw an hour and heating up 40 degrees likely takes us an hour (this varies by the amount of water, and again, the insulation and temp Delta) how long does it take you to reach $100 worth of insulation when every time you dip you burn just under a buck? @smedlin you must be going on 2 years by now. If you dip once a week you would have completed your ROI by now.
The usage really varies. There have been several weeks in a row I never turned the tank on. And then there are times when it's on every day for several weeks.
And your logic may be off. Keep in mind that the majority of the year down here (on the Gulf Coast), most of the time the outside temp is at or greater than the tank temp.
I remember back in August, when the tank hadn't been on for about a week. I turned it on and the water temp was in the low 80's.
But I do see your point. I turned it on Wed, and it took a LONG time for it to heat up. Next time I drain it, maybe I'll look into wrapping it.
how do y'all hold that insulation on the tank? Strap it?