On 2/20/2021 12:19 PM, micky wrote:
In alt.home.repair, on Sat, 20 Feb 2021 18:30:58 +0000, Trainkarr
wrote:

My son moved into a house with overhead drain in the basement about 10 months ago. The line is just under 8 from the floor with a brass check valve at about 4 high. His 27 year old Kenmore has been working fine with it for that time. It does have a P-trap in the line where it connects to the main feeder.

This post is not a question.

What is the question? Because of thread drift, one cannot at all
assume the question is the subject line.

Assuming the subject might be the question:

My understanding is that washing machines will indeed pump 8 feet above
the floor but if you're not sure, get a guarantee in writing from the
store selling you the machine that you can return it for cash. Or maybe
one replacemen4t and cash if that one won't work. No extra delivery or
installation charge, in writing.

If you already own it, connect an output hose that goes 8 feet up and
then back down into the laundry sink or a big garbage can and see how it
works. If it works, connect it permanently.


That only tests whether it can pump into that height for a moment, not
long term. As soon as the siphon effect starts, the pressure the washer
is providing drops again.