BRS Dosers 1.1 mL/min. How long can the tubing be?

[bozo]

I'm trying to see if I can run these dosers from my shed outside into the home where the tank is at.

Its about a 25 foot run.

I plan on using RO tubing with the dosers.

Would the back pressure caused by the length of the tubing have any effect on accuracy and consistency?

I already have heavy duty peristaltic pumps for AWC and ATO set up, but it looks like these BRS dosers arent as heavy duty as my Stenner pumps.

Thanks

 

[Snoopy 67]

The only answer is -- you will have to try it.

 

[bozo]

The only answer is -- you will have to try it.

youre absolutely right

Will just do it and see what happens

Hopefully it doesnt siphone an entire alk container into my tank lol

 

[spsick]

These pumps are tanks I see no issue with that however you’ll have to measure your output regularly as that run may drop output a little but maybe not.

 

[Gtinnel]

Hopefully it doesnt siphone an entire alk container into my tank lol

If working properly there can’t be a siphon with a peristaltic pump, however it’s always a good idea to have the tubing so that it can’t start a siphon. Just relying on pump rollers to not wear out too bad would make me incredibly nervous when a siphon could wipe out the tank. Especially on this pump that only uses two rollers so that only one would be pinching the tube off part of the time.

 

[bozo]

If working properly there can’t be a siphon with a peristaltic pump, however it’s always a good idea to have the tubing so that it can’t start a siphon. Just relying on pump rollers to not wear out too bad would make me incredibly nervous when a siphon could wipe out the tank. Especially on this pump that only uses two rollers so that only one would be pinching the tube off part of the time.

The two rollers make me super anxious about creating a siphon. I’ll just have to do what you advised and figure out how to prevent a siphon

Any recommendations?

The pumps will be at a higher level than the tank
Thanks for your thoughts

 

[bozo]

These pumps are tanks I see no issue with that however you’ll have to measure your output regularly as that run may drop output a little but maybe not.

Thanks for the response

I was just gifted 5 of them lol.

I plugged them in and saw that they were super slow lol.

I didn’t realize how slow 1.1 mL per minute actually was until I powered them on lol.

But at least they are real peristaltic pumps and not the cheap stuff.

 

[exnisstech]

I run one for kalk but am only pulling about 5ft vertical then dripping about 2 ft to the sump. I have the pump mounted above the sump which is on a stand and my container on the floor so there is no chance of a syphon. It's been working so well for the last year or so I just bought a second when they were on sale for a back up.

 

[Gtinnel]

The two rollers make me super anxious about creating a siphon. I’ll just have to do what you advised and figure out how to prevent a siphon

Any recommendations?

The pumps will be at a higher level than the tank
Thanks for your thoughts

The height of the pump doesn’t matter for a siphon. All that matter is the height of the outlet vs the height of the liquid in the dosing container, and don’t put the outlet underwater so you can’t start a siphon backwards.