All of a sudden all four (4) commodes are leaking at the front of the water level in the bowl. High Water Pressure Problem? How to check it.
Thanks,

All of a sudden all four (4) commodes are leaking at the front of the water level in the bowl. If what you're telling me is that all your toilets are overflowing when flushed then you have a blockage that must be snaked, High water pressure wouldn't cause this problem. Does everything else drain OK? Let me know, Tom

Answer Toms' questions, but if this is really a water pressure concern you can test the house water pressure by purchasing a hose bib pressure gauge at a local home improvement store... see image. Screw the gauge onto an outside faucet and take the pressure reading... take multiple readings.

High pressure would be anything that exceeds 70-80 P.S.I. If you find that you have excessive pressure then, most likely, your PRESSURE REDUCING VALVE (if present) needs to be repaired/replaced, OK?

Mark

Even if you had high water pressure in your house it wouldn't cause your toilets to back up.
Back to my original question. " Does everything else drain OK?" Let me know, Tom

I guess I'm reading this different than you, Tom. I've never seen 4 commodes back up/leak (and not the tubs/showers, too)?

Hopefully, punum will return and clarify!

Hey Mark,
If you'll go back on my posts I've been asking
Back to my original question. " Does everything else drain OK?" from the git-go and haven't received a answer as yet. But since drainage and water are separate I fail to see how high water pressure could over flow all 4 toilets. Just got to be a blockage somewhere. And your thoughts. Regards, Tom