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  #1  
Old 10-19-2010, 11:31 PM
zman9119 zman9119 is offline
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Pond pump intake piping

So what does everyone use for an intake line for a pond pump?

I have seen mainly seen Sch 40 and 80 PVC and poly used in this area. All the PVC ones I have seen get removed for winter and I have seen a few poly ones left in with no problems with freezing.


So what are you using? Any benefits one over the other?
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  #2  
Old 10-20-2010, 08:08 AM
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Poly wouldn't be so great if you have a check valve at the inlet - I like flexible PVC for suction hose.
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Old 10-20-2010, 10:52 AM
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Quote:
Originally Posted by Wet_Boots View Post
Poly wouldn't be so great if you have a check valve at the inlet - I like flexible PVC for suction hose.
sched. 40 pond/pool/spa flex is what i use for suction, i've not had collapse or deterioration issues. i do suggest black for exposed installations though.
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Old 10-20-2010, 11:19 AM
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I do wish there were some good cheap mechanical fittings for the PVC suction hose.
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Old 10-20-2010, 07:53 PM
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irritation irritation is offline
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I use poly on submersible pumps and suction lines for centrifugal pumps and leave them in all winter....never had a problem.
If I winterize a system where they used PVC, I will pull it.
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Old 10-20-2010, 08:23 PM
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Poly pipe is not designed for vacuum use, so I always worried what it would do with a slightly clogged intake. The spiral-reinforced flexible PVC is rated for vacuum service.
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Old 10-20-2010, 10:12 PM
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Quote:
Originally Posted by Wet_Boots View Post
I do wish there were some good cheap mechanical fittings for the PVC suction hose.
Quote:
Originally Posted by Wet_Boots View Post
Poly pipe is not designed for vacuum use, so I always worried what it would do with a slightly clogged intake. The spiral-reinforced flexible PVC is rated for vacuum service.
sched 80 male and female adapters work well with pvc flex glue, primer only the coupling not the flex.

no worries about the fittings, the tendency is to collapse not to separate.
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Old 10-20-2010, 11:05 PM
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tadpole tadpole is offline
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No Question. Flex Pvc. higher cost, but install it and forget it. Never a problem in even the harshest environment.
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Old 10-21-2010, 06:42 AM
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1-1/4 polly , usualy pull it for winter. Set up with a float and a weight.
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  #10  
Old 10-21-2010, 08:36 AM
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I've seen the pipe come loose from glued fittings, specifically a ball valve in a pond recirculator feed, so I can't believe gluing is totally worry-free on a suction line.
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