Hit a little hurdle today with the closed-loop; after bonding all sections, a leaked showed at the pump then another one from a true union ball valve. Went to Lowe’s since they had the same brand; they only had one and without both ends so I went to the next Lowe’s in SSF off of 101; nothing, only one 3/4”... drove to Lowe’s on El Camino Real in San Bruno; one but missing one end, I asked an employee and he checked stock; none left but San Francisco is supposed to have five in stock...
Had to work some magic and with a bit of luck, the leaks will be gone, have to check on that tomorrow.
The issue at the pump was a bushing that developed a small crack. The pump has 3/4” in/out volute but most of the plumbing I used is 1”, a check valve (to prevent any critters from swimming into the pump; yeah, I watched Finding Nemo and the part where he went into the filter and almost got ground, inspired me to do this) the check valve is 1” threaded so all I needed was a reducing bushing.
Tomorrow I might test the drain/return and set the ATO.