Well see, I haven't touched the valves at all. And from what I was told, the left valve opens and closes the spa and pool skimmers/drains (up closes pool, down closes spa). The right valves opens and close the return jets from what I was told (so that the hot water can go just to the spa or too the pool I guess). The heater doesn't work though and is disconnected. So I was told to just leave the valves like I have them for general cleaning. And I don't remember this ever happening (and now that I think of it, I know it never did because usually after pouring some down the skimmer, I'd walk around the pool and throw some in in the deep end... there's no way I could have missed it all coming up).
Here's something I hadn't thought of and I noticed things were a little messed up then and this is actually the first time I put the powder chlorine stuff in there since (trying to use it up even though I am using bleach now). This pool does not fill up on it's own. It's pretty old school, not sure how old but anyway... On saturday or sunday I think the water was below the skimmer line (or well, low enough water couldn't get over the little door thing into the skimmer). I don't live at the house right now but I had meant to go over and fill it up the day before and was really worried the next day because I knew by now it would be quite low and I was right (I should have done it a few days earlier but didn't have time while I was over there to sit around and turn it back off). I didn't wanna burn the motor out even though he said it would shut off if water stopped going through. Well when I got there, the spa water was WAY low. It had to have been going out the spa's drain and be pumped into the pool for it to be that low). Usually that's where a lot of the water returns into and then spills into the big pool. There was no water coming into that at all. I checked the pump and it was still on but there was water still going through it. The skimmer by the pool didn't look like it was sucking either (no more water could get into the skimmer but there was still water in it). Filled the pool, turned the pump off and then back and everything seemed to be alright while it was priming itself but the spa skimmer never did seem to work right after this. It is filling up with water and spilling into the pool but you can barely notice it when you stick your hand over a jet. Seemed to work better than this before as usually you could see the powdered water shooting into the pool pretty well which it didn't do much at all yesterday really.