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For some reason I've been experiencing a high failure rate from these things. I'm talking new out of the box. My guess is that they are now made in China. About 25 to 30% fail either right away, or within a couple of months. Anyone else seeing this?
We haven’t experienced any high failures with any of the foot valves. We use mostly the Blue foot valve. I can't recall when I had one fail. It's been a long time.
In the beginning I had many fail. I switched over to the blue ones AND changed my chemicals. No problems since (4 years). I think it had something to do with my chemicals as I had other issues as well.
It seems like the quality of the hydrominder blue & grey footvalves has decreased in direct proportion to their increasing price! What exactly in that piece of plastic has increased to justify a price of over $7.
I'm not sure who makes it, but last year I tried Kleen-Rite's part #INHB500 as a footvalve. I bought 6 of them and right out of the package I could not suck through 3 of them. They simply wouldn't open.
I have now made it a practice to continue using the hydrominder footvale but double check it with a 3/8" JohnGuest speedfit checkvalve. (Kleen-Rite part#JG6CV or Dultmeier #LM SCV38) They are not cheap, but they sure work well. The cracking pressure is low enough that it doesn't affect the draw.