how do you heat the water in a ro wash tank?

[TRAILGUY]

got rays 250 ro just plumbed it up now need to heat water in wash tank , would like to heat permate and not use house water. need 15 gallons plus

[sugarman3]

Running it on the wash cycle, usually the pumps heat the water,at least on springtech ro's because you have to get it to a certain temp for it to properly wash and soap to work.don't know about those rays,probably catch some permate and heat it up to proper temp and put it in wash tank.had a old sap brothers ro and that was what i had to do

[MISugarDaddy]

If you want to use permeate, you can heat 5 gallon pails of water with a bucket heater available at TSC. We also have a Deer Run 250 and we run 15 gallons of warm water from the hot water heater in the sugar house while we are processing the sap through the RO and then get it hot using a TSC bucket heater. (Our hot water heater is only a 20 gallon unit.)
Gary

[wiam]

On my Memtek 250 I used a 15 gallon plastic barrel. Bulkhead fitting in bottom to drain. Bulkhead near bottom for return. 1.25 bulkhead up about 8" with bushing to 1". A standard water heater elemnt will screw into this. I use a 3500 watt. This will heat just about 1 degree/minute. MAKE SURE POWER IS OFF BEFORE TANK IS EMPTY! The element will burn it self out and the bushing will melt. Luckily you can replace the bushing and bulkhead is still fine. Don't ask how I know, but I had to double check. lol Newer RO this year. But still with a piston pump which does not heat water like a rotary new wash tank will have a float switch to shut heater off if tank is low.

[red maples]

just use perm and let the machine heat it for you. Not sure about yours but I have H2O 300 and all I have is a 5 gallon bucket. the machine had a high temp shut off at I wanna say 104*F anyway. I don;t remember how long it takes but you want that soap to run through for a good amount of time anyway to make sure the whole membrane is clean. then continue running through the remainder of perm to rinse.

[maple flats]

I have an RO of Ray's. I don't think it will be practical to have the pump heat it, would take too long. My first year I heated my wash water on a turket frier burner, since then I've used these: http://www.sportsmansguide.com/product/index/portable-tankless-water-heater?a=1588405 I used this years 2 & 3, now I've gotten this: http://www.sportsmansguide.com/product/index/eccotemp-l7-portable-tankless-water-heater?a=1182647 for faster heating. In each case I heat the water as I finish running the RO, the smaller one heats slightly over 1 gpm to 120 degrees from mid 30's to 120. I tested the newer one and it seems to heat about 2x as fast. To get the 120 I want I regulate the flow and use a thermometer to get temp with the heat setting on high. While the smaller one was OK I just wanted something faster. I kept the smaller one as a back up.

[ennismaple]

We use hot water from the preheater mixed with permeate to get to between 33C and 35C. The RO will run for about an hour to get to 42C before it shuts off on high temp - which is more than long enough to clean the membrane. The only PITA with this is carry 3 or 4x 5 gallon pails of preheater water to the RO room.

[maplwrks]

Put a heating element in your wash tank!