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Thread: Stenner install question

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    Stenner install question

    Counter to what I've read elsewhere it appears Stenner does not recommend the use of a Tee fitting at the injection site.

    Below is from the Stenner site. Thoughts appreciated.

    http://www.cleanwaterstore.com/mm5/g...d_install2.gif
    Anthony Pool, 35k gal plaster, DE (1.5hp Ultraflow), Rainbow 320, Dolphin Diagnostic 2001 (Advantage) & Polaris, Retrofitted Anthony mod #20 120v Niche light with Pentair 5G & adapter ring, 70's build / recoped and plastered 1.5 years ago

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    Mod Squad Bama Rambler's Avatar
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    Re: Stenner install question

    They're most likely concerned with stagnation if using a full branch tee. You're not likely to have a problem using a full branch tee in pool systems because the flow is turbulent enough to keep the branch flushed. however, using a reduced branch tee eliminates the problem altogether.
    Dave J. TFP Moderator
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    JasonLion's Avatar
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    Re: Stenner install question

    Using a reduced branch tee is just a little more reliable long term than the fittings Stenner suggests, though either approach works well enough for most people.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Re: Stenner install question

    Quote Originally Posted by JasonLion View Post
    Using a reduced branch tee is just a little more reliable long term than the fittings Stenner suggests, though either approach works well enough for most people.
    I'm guessing a reduced branch tee will help insure the tip of the injector is in the path of outgoing water. It appears, in this diagram, that Stenner recommends the drill and tap method. However, a tee is described in the 85MHP17 user manual.

    Question on drum connection: Is a vent of any sort needed? Seems a vacuum would develop and prevent chlorine from being drawn into the pump.
    Anthony Pool, 35k gal plaster, DE (1.5hp Ultraflow), Rainbow 320, Dolphin Diagnostic 2001 (Advantage) & Polaris, Retrofitted Anthony mod #20 120v Niche light with Pentair 5G & adapter ring, 70's build / recoped and plastered 1.5 years ago

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    JasonLion's Avatar
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    Re: Stenner install question

    There has to be some venting to let air in to replace liquid pumped out. High end acid tanks have one way valves so air can get in but fumes can't get out. Most people just use a fairly tight but not air tight seal around the tube, tight enough to keep most fumes inside, but loose enough to let some air get in.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Isaac-1's Avatar
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    Re: Stenner install question

    On my setup I use a common plumbing vacuum release valve on the tank to keep it from collapsing, and for overpressure I simply use wedge shaped rubber stopper around the feed line where it goes through a hole in the tank, the weight of the foot valve (I use a metering pump not a stenner pump) holds the tube in place. If enough pressure builds up to lift the hose with the ceramic foot valve weight (a few ounces) it will allow the rubber stopper to lift out of the hole and vent.

    Ike
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    Re: Stenner install question

    I'll have to look up the pressure relief valve. What are they typically used for? I like the idea of a "floating" stopper for the tube. It seems most just stick the tube through a drilled hole, as Jason mentions.

    I'm thinking I may get two 15 gallon drums and swap them out. I can easily fill out in the open and then swap with the empty drum.
    I'm also thinking of putting a plastic "tube" in the ground so that the drum will drop in most of the way. This will prevent tipping and keep the setup neat looking.
    Anthony Pool, 35k gal plaster, DE (1.5hp Ultraflow), Rainbow 320, Dolphin Diagnostic 2001 (Advantage) & Polaris, Retrofitted Anthony mod #20 120v Niche light with Pentair 5G & adapter ring, 70's build / recoped and plastered 1.5 years ago

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    Isaac-1's Avatar
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    Re: Stenner install question

    Look up a Watts N36 vacuum release valve, mine came from the plumbing aisle at Lowes next to the other valves, I think it cost about $10-$15
    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: Stenner install question

    Quote Originally Posted by Isaac-1 View Post
    Look up a Watts N36 vacuum release valve, mine came from the plumbing aisle at Lowes next to the other valves, I think it cost about $10-$15
    Thanks for the info! I'm almost done collecting parts. I'll be assembling and testing very soon. I'm also searching for a reasonably priced supplier of chlorine. A bit more challenging than I thought.
    Anthony Pool, 35k gal plaster, DE (1.5hp Ultraflow), Rainbow 320, Dolphin Diagnostic 2001 (Advantage) & Polaris, Retrofitted Anthony mod #20 120v Niche light with Pentair 5G & adapter ring, 70's build / recoped and plastered 1.5 years ago

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