Remind me again?
- Thread starter Chris A
- Start date
Charlie Lyman
Supportive Member
On my Boxxer 421 the 3 way valve was loose. I took the knob off and tightened it up and it fixed the problem. This was after I rebuilt everything else.
ruff
Member
My issue is that the one way valve at the and of the draw pipe that goes into the chemical (concentrate) jug, gets stuck (corroded- Procyon.) Therefore the mixed solution from the mix tank drains back to the concentrate jug.
Didn't happen much with other products, happens all the time with Procyon and Soap Free.
Didn't happen much with other products, happens all the time with Procyon and Soap Free.
Hmmm... I don't have a one way valve there , just a screw on filter maybe that's part of the problem. I run a soap free rinse as well so I'm all too familiar with the corrosion. I changed my boxxers chem system to all ss I just havent gotten this one done yet.
ruff
Member
Some of the filters actually have a little metal ball and a spring that acts as a valve. The suction from the siphon, I guess, opens it.
Yeah I double checked it today , just a straight screen no check valve... but I don't think that's my entire problem , seems I'm tearing into this chem system once every couple months really says something about the old siphon systems.
Hoody
Supportive Member
No pin holes in any of the hoses ?
Charlie Lyman
Supportive Member
There is no foot valve on the draw tube in the chem pump on your Boxxer. There could be a number of problems causing it to backfill. Replace hoses (get them at lowes pretty cheap) Get a rebuild kit for the pump (easy job, should take 10 minutes) if that doesn't work I would look at the 3 way valve. I've been through this problem and one of these are the issue.
SamIam
Member
Its probably check valves on your chemical pump I went from brass to stainless steel used soap free and DFC105 and brass denigrated.
Sent from my iPad using Tapatalk HD
Sent from my iPad using Tapatalk HD
Yeah i re-did all the fittings in stainless, I'm thinking of doing a ss chem pump next time around too cuz any anti-soap rinse eats that too... my TM mechanic showed me an eaten brass 3 way that had only Hydra-Dry run through it so maybe its not just the chems but the brass itself?
Desk Jockey
Member
If it's a PC chem pump check the diaphragm.
SamIam
Member
diaphragm would cause the pump to stop flowing or lose flow the check valve back to chemical jug if stuck open would lose flow and fill your chemical jug. Mine had piece of brass sticking in the check valve . Im referring to my 405 but I believe hydromaster has the same setup on thier chemical pump.
Sent from my iPad using Tapatalk HD
Sent from my iPad using Tapatalk HD
