The one problem I have been unable to solve
We have been taking care of this commercial property for the past year.
Approximately 45,000 gallons
Mec-o-matic system
3” plumbing
2vsp’s with 2 sand filters plumbed individually to each pump meeting at the return line.
3” return line
I have checked the pressure in the return line, which is less than .5psi
Both of the sand filters when clean are in between 7-10psi
200GPM
The issue we’re having is the mec-o-matic ceramic ball spring loaded with a Viton gasket keeps on having scale buildup.
I tried Stenner duck mouth injector and same issue.
Also: every time with a new check valve brand new I can’t blow into it with my mouth either way but after the system is started up I can blow into it both ways freely with little force.
Sometimes an issue: check valve fails (most likely because of scale buildup) and lets water into the 15 gallon liquid chlorine jug and causes it to over flow. ~I’ve turned down the rpm’s to temporarily fix this issue~
We are using 12.5% sodium hypochlorite
Chemistry: 95 alkalinity - 7.6 pH - 230 calcium - 50 cya
Backstory: previous management of the property before we took over somehow combined calhypo and acid. Upon us taking over calcium levels were 450’s. Since then we have partial drain and refill until we got the chemistry we needed.
Manufacturers have been no help with this issue and I do not know who to call anymore since I have exhausted my resources. I cannot necessarily blame them because it seems like more of a chemistry issue. I really hope somebody can help me on here we’ve replaced 6-7 of the injectors and same issue, not a manufacturing issue.
Stuff I haven’t tried that I can think of: flushing the system of calcium scale inside plumbing (if there is any, we don’t get any shooting out of return jets or calcium precipitate)
Turning up pumps % and trying a new check valve