Location of Dosing Containers

[clm65]

I just got the BRS 2-part dosing system and am looking at where to place the pumps and containers. There is very little room under the tank, so I either need to set the containers on the office floor next to the tank, or locate them remotely. By remotely, I mean in the garage beneath the tank (tank is on the second floor). The pumps are rated for 20' of head, so I don't think there will be a delivery problem, but are there any temperature concerns I need to be worried about? The garage temperature may vary from 50's during the winter to 90's during the summer. Any other concerns I should be aware of?

 

[45ZoaGarden]

Yes, with higher temperatures, the rodi water can evaporate right out. Why Not build a shelf or get a small cabinet next to the tank

 

[Waters]

I would keep them as close to the pumps as you can. Makes calibration, troubleshooting, etc. much easier.

 

[pdxmonkeyboy]

I think you would be fine, temperature wise, both jugs of 2 part are stable and won't be affected by temperature (although mix with warm water if you can, speeds the process along). The only other tip I can offer is don't let the outlet of the dosing pumps touch the water or be in an area that is constantly wet. The alk can precipitate and clog the end of the tube in these cases.

Cheers.

 

[clm65]

Yes, with higher temperatures, the rodi water can evaporate right out. Why Not build a shelf or get a small cabinet next to the tank

A cabinet is a possibility if I end up keeping them in the office. But just one more thing taking up floor space (which I don't have a lot of). And I believe the containers will be pretty much sealed other than the suction line and a small vent hole, so I don't think very much evaporation will occur.

 

[clm65]

I would keep them as close to the pumps as you can. Makes calibration, troubleshooting, etc. much easier.

Agreed, the pumps would be located wherever the containers are.

 

[clm65]

I think you would be fine, temperature wise, both jugs of 2 part are stable and won't be affected by temperature (although mix with warm water if you can, speeds the process along). The only other tip I can offer is don't let the outlet of the dosing pumps touch the water or be in an area that is constantly wet. The alk can precipitate and clog the end of the tube in these cases.

Cheers.

Good feedback. The discharge end of the hose would be well above the sump water level, so no concern with back-siphoning and draining the tank. Hopefully that will prevent precipitation and clogging too. The one concern I still have, speaking of back-siphoning, is having the dosing tubing drain back to the container between additions. I would put a small airline check valve in each line, but I have never met a check valve that was immune to leakage.

 

[pdxmonkeyboy]

you should not have a problem with back draining. BUT.. and I just remembered this. I had my tubing just hanging down from my doser.. maybe like 2 feet. And over about 6 months, the tubing on the dosing heads stretched so much that flow was greatly restricted and I had to replace all the tubing. So make sure to mount the tubing so that it is not "pulling" on the doser head tubing.