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Old 06-08-2019, 16:28   #1
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Hose from shower pan collapses when pump turned on

So, Iíve refit the head with a shower, pump, lines etc. The only thing I used from the original boat was the hose from the shower pan to the sump pump. The pump is a 3.0 gpm and the pan is too shallow to have an integrated sump and pan. Every time I turn on the pump the original hose collapses and very little water can flow through. Before I tear up everything (almost) Iíve done Iím looking for suggestions.

Right now Iím looking at removing the ďone way valveĒ (can remember the correct name) but I know itís in correctly or I shouldnít get any suction through it.

Iím thinking about trying to run a smaller tube (copper) through the shower pan up to the valve in the hopes of reinforcing the original hose. Iím guessing I wonít be able to get past the bend but I really donít want to deconstruct everything.

Thanks
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Old 06-08-2019, 17:14   #2
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Re: Hose from shower pan collapses when pump turned on

Try a smaller pump or replace the hose with one that wont collapse.
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Old 06-08-2019, 17:26   #3
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Hose from shower pan collapses when pump turned on

You most probably have a partial clog somewhere that is restricting flow enough so that the hose gets sucked flat.
Take a garden hose and try to blow through the hose backwards. I assume only one end is accessible? If not then blow through the normal way.
If you have to do it backwards, put a towel on the drain so you donít blow nasty water everywhere.
Iím thinking a hair/soap scum clog.
Usually the pump doesnít connect directly, usually use I believe is to drain to a bucket and have the pump in that bucket.
Mine is a diaphragm pump, those can be mounted up high, out of the bucket so itís easy to get to for service.
Be sure to have a strainer before the pump.
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