saltwater_soul

Good morning, We recently purchased a home with a pool. Having never owns a pool before, we are slowly figuring it all out - or so we thought until we tried to heat up the spa for the first time last night. We have a pool with an attached spa with spillover into the pool. The spa also has a hole in the middle for a screw in fountain ( which we have taken out). With the filter on the spa fills up and spills over into the pool. With the filter off the spa drains down to pool level. Not ideal, but it has been ok - the spa always fills back up when we turn the filter on. So last night we turned the valves to what we thought we were supposed to do, turn the heater on and the jets came on and the spa heated up, BUT it slowly drained down to pool level. I have tried all morning to attach photos of our set up but can't seem to figure it out. Help on all fronts would be appreciated http://flic.kr/p/e3N5H6 http://flic.kr/p/e3N5E8 http://flic.kr/p/e3THAs I can't get them to show up as pictures, but here are links to the pictures - I hope this works....