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Thread: Weak Pressure in Spa - Replacing Pentair Nozzle Jet

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    Join Date
    Jun 2015
    Voorhees, NJ

    Weak Pressure in Spa - Replacing Pentair Nozzle Jet

    The pressure in my spa jets is very weak. I took them apart over the weekend, since I thought that maybe they needed to be cleaned. I noticed that one of the jets is missing the mix nozzle (not sure exactly what it's called). Is it possible that this is causing my issues? I didn't see any debris while I was cleaning them. I have to order a new piece, but I'm not sure which part is correct (#46543000 or #46443100). The links are below. Can anyone tell me the difference?

    I also noticed that the jets work better if I run the blower for 20-30 seconds. My blower died a few weeks ago, so I am in the process of installing a new one. The only other issue that I can't seem to troubleshoot is the valve. The spa jets valve is turning so easily, and I don't know why. In the past, there would be resistance, and I would hear the water as I turned it. It seems like there is no pressure. What could be causing this? : Pentair 46543000 Diversion Gun Vent Jet Mix Nozzle Jet Replacement Pool Specialty Fittings : Outdoor Spas : Patio, Lawn Garden : Pentair 46543100 1/2-Inch Concrete Mix Nozzle Jet Replacement Pool Specialty Fittings : Patio, Lawn Garden
    Inground Pool - 35,000 gallons - SWG (Nature2 - FUSIONSOFT1400) - Cartridge Filter

  2. Back To Top    #2
    mas985's Avatar
    Join Date
    May 2007
    Pleasanton, CA

    Re: Weak Pressure in Spa - Replacing Pentair Nozzle Jet

    Scroll down on those pages and look at the length. One is 3.2" and other is 5.9"
    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

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