dosing into a pressurized line?

[afex]

tldr: is it possible to dose into water which is being pumped out of and back into the sump using a single pump?

i'm planning my remote setup in the garage (single story home) and wondering what else i can deal with remotely. i will be using dosing pumps with 1/4" tubing run between tank and garage for things like ATO and water changes. i'd also like to do things like dosing remotely, but would prefer to not need to run a 1/4" tube between rooms for each dosed solution.

i specifically do NOT want to try to do any sort of 2-sump, 2-pump, balanced in/out business.

for running things like remote reactors, this seems straightforward by having a pump in my sump run water to reactors in garage, with their output plumbed back into the sump. generalizing this approach, it seems like i could possibly reduce the runs between rooms to just "tank water out" and "tank water in", without needing a separate pump in the garage to send water back, and attach reactors and dosing into the line.

is it feasible to dose into this pressurized line and piggyback on the water already heading back to the sump?

 

[DLHDesign]

First off; welcome to R2R! Glad you found us.

How close to the tank is the garage? Running lines through a wall isn't that big a deal, but running it through multiple walls and/or under the house is something else entirely...

Plumbing a dosing pump into a pressurized line doesn't seem like a good idea to me, though I have never tried it myself. The venturi effect is likely to make it difficult to get predictable volumes out of the dosing line, I'd think...

 

[afex]

tank is about 12 feet from garage-attached wall.

 

[afex]

bump

 

[Reefiness]

If you want to do remote, are you planning on sump in the remote area. No need for 2 sumps, I would say one in your remote location is more useful. Then you just rain a drain line or 2 and a return line between tank and remote sump then everything else gets done in sump.

 

[ca1ore]

I wouldn't do that. You run the risk of something failing and firing water back up the dosing line. How about dosing into the drain line? That seems much safer to me. Or dose over the rim of the display. Use black RO tubing and paint the RO elbows black and you will never notice it.

 

[afex]

Thanks for the extra comments!

My driving issue is that i have a garage nearby my tank room, but am unable to cleanly run large piping between them. (No attic or crawl space) this makes doing a gravity-fed remote sump harder. I can attach pictures of the room if that would help understanding.

since I can run 1/4” tubing cleanly (attached to wall and hidden with cable conduits) I’m attempting to think of solutions which can allow me to run my sump under the tank for skimming and fuge, but do things like reactors and dosing remotely

 

[foxt]

I dose floccculant into my domestic water supply under pressure using a pulsafeed chemtech pump. It might serve the purpose you asked about.