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Thread: shutoff valves around injection point?

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    shutoff valves around injection point?

    I'm going to install a Stenner pump for chlorine dosing. The manual suggests a shutoff valve on each side of the injection point for when the injector needs to be cleaned. Is that necessary? If so, are there alternatives?
    Pete
    15,000 gallons IG pebble, Sundek plus Luederstone, Pentair FNS Plus 60 DE filter with SM-20-2 valve, Pentair Intelliflow VS pump, Pentair EasyTouch 4 panel, Pentair KreepyKrauly Platinum cleaner, Stenner 45M fixed 10 GPD pump with 15 gallon tank, new pool startup 10/2012

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    Re: shutoff valves around injection point?

    p.s. What is involved in cleaning the injector? I assume it needs to be unscrewed from the tapped inlet on the pipe. Is that going to cause any undue wear on the threads that were tapped into the pipe?
    Pete
    15,000 gallons IG pebble, Sundek plus Luederstone, Pentair FNS Plus 60 DE filter with SM-20-2 valve, Pentair Intelliflow VS pump, Pentair EasyTouch 4 panel, Pentair KreepyKrauly Platinum cleaner, Stenner 45M fixed 10 GPD pump with 15 gallon tank, new pool startup 10/2012

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    Isaac-1's Avatar
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    Re: shutoff valves around injection point?

    No need in typical pool situations, just turn off the pump, or if dealing with an above ground pool turn off whatever valve you might use when you need to clean your pump basket.

    Ike

    p.s. typically you will have PVC pipe with the female threads and a nylon injection valve fitting which will be much softer than the PVC so most of the wear will be on the injection valve fitting.
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
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    Re: shutoff valves around injection point?

    Thanks Ike, I'd like to put a 90 degree elbow at the injection point so to lower the profile to lessen the chance of it getting broken by accidentally hitting it. I see nylon 1/4" MNPT/FNPT elbows (that I'd screw the Stenner injector into). Would a nylon elbow work? Would I need to use teflon tape or pipe dope (any particular kind) or something else or nothing, considering any leak would be bleach? I haven't found PVC connectors in a quick search.
    Pete
    15,000 gallons IG pebble, Sundek plus Luederstone, Pentair FNS Plus 60 DE filter with SM-20-2 valve, Pentair Intelliflow VS pump, Pentair EasyTouch 4 panel, Pentair KreepyKrauly Platinum cleaner, Stenner 45M fixed 10 GPD pump with 15 gallon tank, new pool startup 10/2012

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    Isaac-1's Avatar
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    SW Louisiana
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    6,711

    Re: shutoff valves around injection point?

    a nylon fitting should work, I personally would also use teflon tape, you should only need to unscrew it every few months to clean it.
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
    I use and endorse TFtestKits TF-100 from http://tftestkits.net
    ~Remember TFP counts on your donations to keep this site ad free~

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