Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 3 of 3

Thread: Valve Combinations for Station Re-do

  1. Back To Top    #1

    Join Date
    Oct 2012
    Location
    Southern California
    Posts
    42

    Valve Combinations for Station Re-do

    If clearing my MD clog requires lowering the pool water level to that of the two suction-line valves, I will most likely replace the two 60-year-old brass gate valves with modern "neverlube" ones. A search on the characteristics of NL three-way valves did not yield any positive answers to whether my desired upgrade is possible with only three such valves. I am therefore, soliciting advice as to the simplest configuration for achieving the following:
    1. Valve (or valves) to rout either MD or skimmer suction line to the pump, both lines to the pump, or stop the flow of both lines.
    2. Valve (or valves) to allow return water from the filter to either pass through the heater, or bypass it.
    3. Valve (or valves) to allow water from a "T" connecting the heater & the bypass to go either directly to the pool return line, or split the
    return between the pool return & the inlet to the pool cleaner's booster pump. The output line from the booster already has a PVC ball-valve
    inline, to isolate the 2nd pump, so no modification is needed there.

    ( yes, I am a lazy B****** )
    15K gallon in-ground gunite/plaster pool(58 year-old Anthony Bros.), 15'x30', depth 3-1/2'->8' . Hayward Ecostar pump. Hayward DE-3600 filter with Variflow 710XR50 1-1/2" valve. Polaris 380 cleaner & "the pool cleaner (suction)". Main-drain suction disconnected. New skimmer suction plumbing 2" PVC. Single return line 1" copper. Cleaner line 1-1/2" copper, re-plumbed in pump-house (PVC) for either suction or pressure. Hayward 3/4HP PB4 booster pump. Leslie's 260 BTU Coppertherm heater. All new suction interconnect plumbing 2". Return plumbing, filter-to-booster, 1-1/2". Single return to pool 1". All equipment located 2-1/2ft. above pool bottom level ( neg. 5ft. from surface ).

  2. Back To Top    #2
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    Location
    SouthWest Alabama
    Posts
    22,347

    Re: Valve Combinations for Station Re-do

    1. One 3-way valve will do that as long as the MD and skimmer lines are run to the pad.
    2. One 3-way valve and an optional check valve will do that.
    3. One 3-way valve will do that.

    Three 3-way valves will do what you're asking.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

  3. Back To Top    #3

    Join Date
    Oct 2012
    Location
    Southern California
    Posts
    42

    Re: Valve Combinations for Station Re-do

    Thanks for the reply. The leak-detector guy just departed, after finding the skimmer leak. His company also does repairs to pool plumbing, as well as residential (house & yard) plumbing. Since he had experience with repairs to pumping-station plumbing, I asked him about re-plumbing with a Jandy 3-way valves as well. Regarding the suction lines, he said the valve can be set to "proportion" the flow between the MD & skimmer lines, as well as one line or the other only, but cannot be set to isolate both lines ( so a separate down-stream ball-valve would be needed to isolate the main pump). He also did not see the need for a diverter for the heater, since the main pool return was only 1", and was the main constriction in the circuit. Proportioning the return flow between the primary return & the cleaner booster-pump was not discussed.
    15K gallon in-ground gunite/plaster pool(58 year-old Anthony Bros.), 15'x30', depth 3-1/2'->8' . Hayward Ecostar pump. Hayward DE-3600 filter with Variflow 710XR50 1-1/2" valve. Polaris 380 cleaner & "the pool cleaner (suction)". Main-drain suction disconnected. New skimmer suction plumbing 2" PVC. Single return line 1" copper. Cleaner line 1-1/2" copper, re-plumbed in pump-house (PVC) for either suction or pressure. Hayward 3/4HP PB4 booster pump. Leslie's 260 BTU Coppertherm heater. All new suction interconnect plumbing 2". Return plumbing, filter-to-booster, 1-1/2". Single return to pool 1". All equipment located 2-1/2ft. above pool bottom level ( neg. 5ft. from surface ).

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •