I have a 4" steel well casing, the top 5' of the casing is
so encrusted with rust scale that
I can't get the pump out. I have tried chipping out the
scale but can't get it all.
How would a well repairman get it out?
I have a backhoe and I'm thinking of digging down as deep as
I can and cutting off
the casing. Then put a piece of 5" plastic well pipe in with
a rubber coupling to fix it.
Has anyone ever tried this?
Did you get the pump up to that 5ft mark? Normally they are down 70
to 500 feet. If you're just fighting the last 5 feet, you're not
doing too bad. A 4" casing is too small to start with. Yes, you
could probably cut it off, but you got to avoid cutting into the pump
or the supply pipe. I dont think a fernco (rubber sleeve with clamps)
would be allowed by law for a well casing. But you could get a piece
of steel like the original and have a GOOD welder weld it so it dont
leak. If surface water gets in, you wont have safe water.
Actually a well driller would have the steel casing and are trained to
weld it water tight. Maybe they have a big reamer too, to clean out
that rust. Why not have one or more of them come and give an
estimate. Another idea would be a very coarse wire brush made for a
drill or grinder. Put it on a 5ft. piece of threaded rod, put on nuts
and washers, and put the whole device in a drill. Then work it up and
down. Of course all this old rust is getting in your water.
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