Last winter my
Watts WA800M4QT 1" broke down after a hard freeze in Houston. Because of the sheer number of PVB that were damaged during the freeze, its been difficult to find replacement parts. So I'm thinking about just replacing the whole thing.
I know plumbing basics and have done a fair amount of repair work on my system (i.e. replacing connections, adding additional runs, etc.). My questions are...
1) The current one is hooked up with PVC from the ground. Is this appropriate (using PVC) and can I just cut off the unit currently in place and replace it with a new one?
2) The freeze we had was a fluke, but who knows what next year will bring. Are the freeze resistant models truly freeze resistant?
3) Do I even need a PVB for a residential install? I've got 5 zones running. I assume I do since I'm going into the main, but it sure would make things easier to bypass the thing all together.
4) I went to Sprinkler Warehouse a few months ago (since they are right down the street) to get replacement parts, but was told they don't carry parts for Watts (even though I saw them on the web site). Any suggestions on where I could go to get replacement parts for the one I have if replacement isn't a good option? I think it's just the white plastic float that broke.
Thanks!