John Vegas
Member
The piston must be perfect. Any scratches or imperfections will cause it to leak. Sounds like you found your problem. Damage to the piston usually occurs during installation. A small piece of solder, or a sliver of copper from the pipe etc can get into the piston area and cause damage. Like the piston in the engine of a car, they can last for 200,000 miles, but a little scratch is all it takes to cause a total failure.
Ok, thanks. I used push to connect fitting, so not likely solder or copper, but who knows, could have been some debris, that wore down over time. Would the piston be replaced under warranty as they seem to be more expensive than the seals? Also, how do I know which one to order as there seems to be two types (different flow rates?).
I can't seems to reduce the picture to a size small enough to post, but I'll have my friend help me tomorrow.
Thanks, JS