I'm getting ready to trouble shoot my chemical pump that quit working a few months ago. I've just been using a clear water rinse but would like to be able to go back to an acid or even an alkaline when the need arises. My question is does anybody make a complete rebuild kit with check valves and rubber diaphragms and o-rings? It's a stainless steel pulse pump that is found on some prochem units. I pulled it apart the other day and found a bunch of rubber shavings in there. I'm not sure where they came from as everything seems to be intact and there were quite a bit of them.