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Thread: Question re Heater Plumbing (picture included)

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    Question re Heater Plumbing (picture included)

    So I had my heater installed yesterday and got him and I am concerned whether it was plumbed in correctly or if my pool builder ran out of connections and made do with what he had rather than going back to the supply store.

    I can't for the life of me figure out why this was plumbed this way because it doesn't make sense. If anyone can help me understand whether it was done correctly or whether I have cause to be concerned that would be awesome. I just don't understand why the return from the heater is plumbed so that water is forced up to a closed valve past the T connection that returns water to the pool.

    Hopefully the picture helps someone to answer my question.

    Thank you.

    Heater Plumb.jpg
    VS 3050 Pentair Pump, Pentair Clean and Clear Plus 320 cartridge filter, Pentair IC 40 SWG

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    Plumbing Question (pic included)

    Topic merged. Please never ask the same question in more than one place. JasonLion

    So I had my heater installed yesterday and got him and I am concerned whether it was plumbed in correctly or if my pool builder ran out of connections and made do with what he had rather than going back to the supply store.

    I can't for the life of me figure out why this was plumbed this way because it doesn't make sense. If anyone can help me understand whether it was done correctly or whether I have cause to be concerned that would be awesome. I just don't understand why the return from the heater is plumbed so that water is forced up to a closed valve past the T connection that returns water to the pool.

    Hopefully the picture helps someone to answer my question.

    Thank you.

    Heater Plumb.jpg
    VS 3050 Pentair Pump, Pentair Clean and Clear Plus 320 cartridge filter, Pentair IC 40 SWG

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    peterdaly's Avatar
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    Re: Question re Heater Plumbing (picture included)

    Looks to me like a heater bypass, that can be switched to fully bypass the heater if needed.

    When the valve is set for flow to the heater, it blocks off the other way. Since it is blocked, water takes the path of last resistance through the lower T back the pool.

    The black thing on the bottom is a check valve, which prevents water from flowing the wrong way.

    Elegant? Not especially, but not horrid, and it looks to me like it should work fine. I am not a pro, but I might have done something similar this situation.

    Opinions from others are certainly welcome.

    Fayetteville, NY -17K gal, IG vinyl, Hayward SP2300VSP Max-Flo Variable Speed Pump, FlowVis Flow Meter, Sand filter
    Self designed Arduino powered automation for pump and solar control, Solar Attic Pool Heater, AutoPilot Digital SWG, TF100

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    JasonLion's Avatar
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    Re: Question re Heater Plumbing (picture included)

    +1 for what peterdaly said.

    That is a good setup, allowing you to completely isolate/turn off the heater, or run 100% through the heater (current setting), or to run part of the flow through the heater. The valves are high quality valves, and putting in the bypass gives you extra options that the plumber didn't need to give you.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Re: Plumbing Question (pic included)

    Yes. That is a bypass loop. You can shut off the heater feed and go direct to the pool while the heater is not in use. It will save erosion of your heat exchanger and allows heater maintenance while the pool is still running.

    For instance: turn the three way to where the only blocked side is the heater feed. Then what I assume is a check valve will prevent water from flowing back into the heater. The water will then run to the pool without going through the heater. When the valve is turned where the heater feed is open (and the bypass is closed), then the only route is through the heater.

    Also, the check valve is important to not allow super-chlorinated water to backfeed into the heater from the salt cell when you turn the pump off.

    Looks like he used quality materials. Good install in my book.
    Science and Math Teacher
    Owner - SPS - part time pool biz
    18x36 IG Vinyl, 23000 Gallons with Jacuzzi (the bane of my existance) pumpworks
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    peterdaly's Avatar
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    Re: Question re Heater Plumbing (picture included)

    Not sure if this was part of this install, but I love the two 45's to make the 90 degree corner. That will increase your pump efficiency. I did that on as many of my own corners as I reasonably could. It takes less pumping power to push water through two 45's than a right angle bend.

    Fayetteville, NY -17K gal, IG vinyl, Hayward SP2300VSP Max-Flo Variable Speed Pump, FlowVis Flow Meter, Sand filter
    Self designed Arduino powered automation for pump and solar control, Solar Attic Pool Heater, AutoPilot Digital SWG, TF100

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    Re: Question re Heater Plumbing (picture included)

    Thanks everyone. Sorry for posting in two places, I wasn't sure where it belonged. It looked weird that there would be a length of pipe above the T-connector but it sounds like it isn't a big deal.

    Gas hooked up today and then swimming this weekend!
    VS 3050 Pentair Pump, Pentair Clean and Clear Plus 320 cartridge filter, Pentair IC 40 SWG

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    Re: Question re Heater Plumbing (picture included)

    Professionally, it looks stupid. Functional, but stupid looking. To me it looks like he used what he had left so he didn't have to run out and get stuff.

    BTW, PVC 45's cost more than a 90. So they spend more money doing it this way.
    Paul
    http://www.gastekservices.com A word of caution: When working with gas and electrical you might want to consider a licensed contractor. Consider the value of your life and others around you. If you would like to provide a review of the help I provided, please use the following link to leave a review. gastek - Google Search,

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    Re: Question re Heater Plumbing (picture included)

    Quote Originally Posted by ps0303 View Post
    Professionally, it looks stupid. Functional, but stupid looking. To me it looks like he used what he had left so he didn't have to run out and get stuff.

    BTW, PVC 45s cost more than a 90. So they spend more money doing it this way.
    I think he was dealing with how the existing equipment was set up which is why the piping looks funny. The 45s seem to make sense to me from a pump efficiency perspective and I can't imagine the difference in price between the 45s and 90s is significant, is it?
    VS 3050 Pentair Pump, Pentair Clean and Clear Plus 320 cartridge filter, Pentair IC 40 SWG

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    JasonLion's Avatar
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    Re: Question re Heater Plumbing (picture included)

    Two 45s are about $3, while a single 90 is around $1. The labor to cut the short piece that joins them costs more than the fittings. In any case still not significant. At the same time the improvement in efficiency is also so small as to be not significant.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    peterdaly's Avatar
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    Re: Question re Heater Plumbing (picture included)

    Jason, at my local Lowe's, they have 45's that already have a pipe sized end molded right as part the piece, so no middle piece is required. It glues directly into another standard 45 to make a clean 90 without any additional parts or labor, other than to glue the two pieces together.

    Fayetteville, NY -17K gal, IG vinyl, Hayward SP2300VSP Max-Flo Variable Speed Pump, FlowVis Flow Meter, Sand filter
    Self designed Arduino powered automation for pump and solar control, Solar Attic Pool Heater, AutoPilot Digital SWG, TF100

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    JasonLion's Avatar
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    Re: Question re Heater Plumbing (picture included)

    peterdaly, sure, but that does not appear to be what was used in the photo above.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: Question re Heater Plumbing (picture included)

    Quote Originally Posted by peterdaly View Post
    Jason, at my local Lowe's, they have 45's that already have a pipe sized end molded right as part the piece, so no middle piece is required. It glues directly into another standard 45 to make a clean 90 without any additional parts or labor, other than to glue the two pieces together.

    Sent from my Nexus 4 using Tapatalk
    That would be called a street 45.
    Paul
    http://www.gastekservices.com A word of caution: When working with gas and electrical you might want to consider a licensed contractor. Consider the value of your life and others around you. If you would like to provide a review of the help I provided, please use the following link to leave a review. gastek - Google Search,

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    Re: Question re Heater Plumbing (picture included)

    why go through the hassle with the 45s when not even 2 feet downstream there are 90s... im thinking someone ran out of parts...
    18x36 Inground 22000 gal Vinyl Lined sport pool \ P Pentair Intelliflo VS pump, Sta-rite 400SQ FT Cartridge filter, Pentair MasterTemp 250K HD Heater, Pentair SunTouch Control System, Pentair IC40 SWG, 2 Pentair Intellibrite 5G Lights, Pentair Intellibrite lite Controller, Pentair Kreepy Krauly 820 robot.

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