Never owned a pool before...Bought the house in July, enjoyed the pool for 2 months, and now the season is over (Michigan).
All the closing chemicals are in, cover is on, water lowered, so pretty much closed. BUT, here is where I need help. As you see in the pics below, it seems ALL of my water (pool, roof/gutters, etc) drain into my main sewer line. The pool has 2 floor drains which I have NOT used (don't even know how they work), and 2 valves on the plumbing. The top valve shuts off the water to the pump/filter. I assumed that the other valve, when open, would have allowed the water to drain into the ground - but it does NOT!!!
1. If that lower valve doesn't allow the water to drain into the ground (and I assure you, it doesn't), then what the heck is it for?????? And how does it work?
2. Living in SE Michigan, do I need to do anything with that plumbing? Blow air into the lines? RV antifreeze? How much? How do I know what's enough? Which valves open and which closed? (oh please don't tell me I need to open the cover back up! I worked so hard getting it tucked on nice and neat).
3. This branch that splits to either the filter/pump or into the ground...is this branch what you call a "GIZMO"???
4. Also and kind of seperate from my plumbing questions - my pump & filter tank/container/housing - can I leave them outside in the storage shed all winter, or do I need to move them inside to the basement?
Thanks for any help you guys can provide!