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Thread: Solar Pipes Hammer & Shake

  1. Back To Top    #1

    Join Date
    Oct 2008
    Location
    Bonita Springs, Florida
    Posts
    84

    Solar Pipes Hammer & Shake

    When the Hayward automation system (pro-logic) switches from one group to another group, the pump shuts off for 30 seconds and the solar valve closes; 30 seconds later the pool pump turns on and the solar valve valve opens. At that moment the vertical pipes going from the pool pad to the roof, shake and hammer vigorously. What can be done to eliminate the shake, rattle and roll?
    SW FL, 19K IG with spillover & cage, Goldline Pro-Logic PS-8, Hayward Sense & Dispense, Hayward Swim Clear 4025, Hayward Ecostar VS pump, Stenner MA pump, Aquabot, Hayward Aquarite SWG, Palin Pooltest 9, Helicol Solar.

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    mas985's Avatar
    Join Date
    May 2007
    Location
    Pleasanton, CA
    Posts
    11,490

    Re: Solar Pipes Hammer & Shake

    What you are experiencing is water hammer. Probably due to a check valve that is slamming shut. The problem is turning it on and off and the solar panels do not have enough time to fully drain within the 30 seconds.

    But why is the system changing "groups"? What are the groups that you are referring to? You might be able to change the programming to leave a time gap between groups.

    There are some plumbing changes that might help but it is much easier to just change the programming.
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

  3. Back To Top    #3

    Join Date
    Oct 2008
    Location
    Bonita Springs, Florida
    Posts
    84

    Re: Solar Pipes Hammer & Shake

    The "groups" perform different functions/settings over a 5 hour period; really there are only 3 "groups". For example, one group does spillover w/o solar, one group does pool only with solar, etc...I'll try your idea of leaving a 3 minute interval of "off" time between groups.
    Thanx.
    SW FL, 19K IG with spillover & cage, Goldline Pro-Logic PS-8, Hayward Sense & Dispense, Hayward Swim Clear 4025, Hayward Ecostar VS pump, Stenner MA pump, Aquabot, Hayward Aquarite SWG, Palin Pooltest 9, Helicol Solar.

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