Commented: What would cause my a/c drain pan to fill up with water?The water is from ambient humidity. The other unit that doesn't have water may need a freon charge or have other issues.
Running constantly can be an under sized unit, need of coil cleaning or the ne...
Commented: toilet still leaksMake sure the tubing from the ballcock going into the overflow tube is not touching the water level. This sometimes creates a siphon making it look like the flapper leaks. Hope this is making sense.