Plumbing of Vac and Skimmer pipes off pool pump

Pool pumps, pool filters and the plumbing of
swimming pools. Sand filters, cartridge filters,
fabric filters and alternative filter media.
I'm new here
I'm new here
Posts: 1
Joined: Mon 21 Sep, 2009 20:27
My Pool: 630 cubic feet pool
50 cubic ft spa
Pelble-Tec surface
Hayward 400 filter
Hayward 1.5 h whisper-flow pool pump
Hayward 2 h booster pump
Pentair Mini-max digital 400 heater
Jandy 4 -3 way automatic valves
Jandy Neverlube 4 - 2 / 3 way valves
jandy 2 - 7305 checkvalve
3 - Pentair Inllebright pool lights
x-10 lighting system - controlled indoors
baracuda x7 quattro poolsweep
6 - 24v low voltage switchs controls and override pumps, blowwer and heater
Solar Panels controled by Compool Auto System
Location: Los Angeles

Plumbing of Vac and Skimmer pipes off pool pump

Postby Elemge » Mon 21 Sep, 2009 21:13

Hello .. I'd just like to tell you I', a new member. This is a great forum.

Recently I moved my entire pool plumbing and electrical to about 100ft away from the old location making it above ground. The old equipment was on a hillside below water level and had many problems with shut-off valves and check valves, filter preasure, installing new pumps, so on ...

Plus, it you neded to fix anything the pool would drain to the point that you cut into the PVC of pipe disconect causing a massine flood

When I moved all the pipings, I plumbed everything the way it was plumbed previously, except alot neater .. nothing but 90 and 45 degree sweeps were used, every pipe and valve installed level and plumb all equipment level ( all the pipeing came up thru the deck, no plubing from the dirt ).. things like that ...

So to make a long and boring story come to the point,here's my question is ...

The vac line ( pool sweep ) and skimmer line ( tied together w/ the main drain ) which eventually go to the pool pump ( suction side ) were tied together with a 3 way valve ( one in to vac, one in to skimmer, one out to pool pump )using a 3 way valve so one pipe just combined pipe enters the pump ( there is a 3 way valve that takes suction from pool side or from the spa side before the pump .. but that doesn't figure into the question) The single combined vac/smimmer lipe enters the 3 way valve onto the pump

Now I come to realize that if I went off the 3 way valve comming from the pump, setting the valve to the pool suction sude, and 90'd down.. using a tee ... to individual pipes pulling from the skimmer and pulling from sweep vac outlet, both with 2 way valves inline, that would have been a bettter installation creating less turbalence and more controll.

Right now, I have to choke the vac line for my pool sweep (Baracuda X7 Quattro ) to operate it properly with the right amout of suction and thus the skimmer sucking power is now very weak becasause of it. Also my pump is working harder The pressure goes down in the filter when the pump works harder also

Should I re-plumb the Vac and Skimmer lines separtly to the valve going into the pool pump with a 2 way valve on each getting rid of the common 3 way that now connects them.

Thank You in advance for you answers.

Any thoughts?


User avatar
Pool Clown
Swimming Pool Wizard
Swimming Pool Wizard
Posts: 88
Joined: Thu 10 Sep, 2009 00:15
My Pool: Uses a Chlorine generator, not a Salt Water Generator (SWG).
Location: Silicon Valley, CA

Plumbing of Vac and Skimmer pipes off pool pump

Postby Pool Clown » Sat 26 Sep, 2009 14:26

Sure, If I understand what you said earlier. It sounds like your pump wont give you the flow you need to run both the skimmer and vacuum, so putting a valve in will help, to the extent of being able to run the cleaner OR the skimmer, but not both.
Factory warranty service for Pentair, Jandy, Raypak, Polaris, and Paramount pool cleaning systems.

Plumbing of Vac and Skimmer pipes off pool pump

Postby Guest » Sun 27 Sep, 2009 02:54

Or alternatively a regular valve on each line, allowing you to open the flow in increments and in any combination you need (e.g. vacuum with skimmer at 1/2, or skimmer with main drain a little open)

Return to “Pool Pumps, Filters, Plumbing & Piping”

Who is online at the Pool Help Forum

Users browsing this forum: No registered users and 1 guest