Try a flexible no hub connector 1 1/4 to 1 1/2

The screen door is hinged same side as steel door on the door jamb, just inside main door. The magnet allows the door to swing and move with the steel door but can also be seperated or pulled loose when you want to open steel door only...leaving the screen door. You have to have a sliding panel on t...

If the bath lav is overflowing then the drain stoppage or block is past the "Y" of the lav The washer sends a lot of water quickly and a blockage might only show up then...so the lav works fine. First try drain cleaner (one rated for ABS or PVC) and then a snake run from the bath lav. You ...

It sounds like a holding tank bladder issue to me too. Try bleeding off air from tank if you can or bypass tank and see if pump keeps running,

Have you thought about doing it like they do on RV's?
Make a storm door but make it outswing with magnets that also swing with entry door, You would have to cut a hole for the knob but a slide filler would fix that

if the only leak is the drain valve then cap it (they sell caps for hose bib at hardware) Kitchen needs to thaw out (probably farthest water source from water heater) leave it on a little and let your heater do the job. If its frozen underneath aheat gun a a creeper and patience will do the trick go...