Last year was first year doing this, no issues (other than searching forever for valves). Thought this year would be a piece of cake. PO had told me to put a soda bottle in filter canister to reduce volume, no prob last year, apparently this year the bottle blocked flow causing this prob. Lesson learned. Once I figured this out turned pump on and it ran…and ran…and ran. I Finally turned it off, went outside and saw dripping from water heater. I have valve handle vertical, pointing to bypass but af was going into water heater. Shouldn’t this valve divert from wh? Will I need to drain everything again to run water through wh? Thanks again for help.