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Thread: I need some Intex hard plumbing help.

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    poolnew-b's Avatar
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    I need some Intex hard plumbing help.

    Ok what I would like to do is have my original hoses run to a piece of pvc that would be attached to the leaf basket on my intex sand filter.

    Im not sure what to get for pipe and fittings. I have a couple of old intex hoses I can use the ends off of if I need too.

    I bought a 2 inch cover but it doesnt seem to be exactly the same as the intex 2 inch cover. It only threads on so far then locks up. It was for the backwash port on my sand filter.

    So in short I want my sand filter hard plumbed but I want the flex of the original hoses so I would like to have 2 spots on the PVC coming off the sand pump that I can screw my skimmer and intake into.

    I will try to find the time to do a paintshop illustration of what Im looking to do.

    My budgets tight so I cant keep running to the hardware store and buying pieces that wont work, Like I have done all week lol.
    Intex Ultra frame 16x48
    Intex 1600GPH Sand Filter
    Taylor K-2005 test kit

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    duraleigh's Avatar
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    Re: I need some Intex hard plumbing help.

    My budgets tight so I cant keep running to the hardware store and buying pieces that wont work, Like I have done all week lol.
    That's the story of my life. There is a distinct path worn in the highway between my house and Home Depot. A picture might be helpful if it's quicker than the diagram.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    poolnew-b's Avatar
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    Re: I need some Intex hard plumbing help.

    So will a standard 2 in male threaded PVC allow me to screw the intex sand filter hoses to PVC?
    Intex Ultra frame 16x48
    Intex 1600GPH Sand Filter
    Taylor K-2005 test kit

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    Re: I need some Intex hard plumbing help.

    I believe you'll need an adapter, as Intex uses non-standard threads. Search the web for "intex fitting standard".

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    Re: I need some Intex hard plumbing help.

    What I did was cut the intex hose and take the nut off, and slip it onto one of these http://tinyurl.com/prdqrm4 which you can then glue your regular PVC to.

    Here's the thread where I got the idea:
    http://www.troublefreepool.com/makin...ml?hilit=intex
    10,000 IG Plaster w/Spa | Hayward Colorlogic LED lights| Hayward C3030 Cartridge Filter | Hayward H400FDN 400k BTU Heater | Hayward SP3220EE TriStar 2 HP single speed pump | In-floor cleaning system | TF-100 | Build finished Jan 2016

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    poolnew-b's Avatar
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    Re: I need some Intex hard plumbing help.

    Yes zolak I think that's the way I'm going to go. Will the PVC break when the pool moves?
    Intex Ultra frame 16x48
    Intex 1600GPH Sand Filter
    Taylor K-2005 test kit

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    Re: I need some Intex hard plumbing help.

    don't worry, lots of people hard plumb with pvc and it doesn't break.

    this is what i have running down from a hayward skimmer.

    skimmer
    1. 1 1/2 male threaded adapter
    2. 1 1/2 pvc pipe
    3. 1 1/2 valve
    4. 1 1/2 pvc pipe
    5. 1 1/2 pvc t-joint (optional. i have another pipe that connects here from the original intake port for for pump)
    6. 1 1/2 pvc pipe (if you don't have a t-joint, skip this step as it is already covered by step 4.)
    7. 1 1/2 pvc elbow
    8. 1 1/2 pvc pipe
    9. 1 1/2 pvc connector
    10. 1 1/2 box adapter
    11. nut from intex hose
    pump

    the box adapter is found in the electrical section, not the plumbing section.

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    Re: I need some Intex hard plumbing help.

    No adapters or hose parts needed. A standard 2 inch slip to threaded fitting fits perfectly on every port on the sand filter, well mine is the 2650gph but I'm pretty sure the 1600 is the same. Here's some links to my hard pipe project with pics of how I did the filter...

    intex-18x48-filter-plumbing-upgrade-relocation-project-t65490.html
    28k gal, IG plaster, 2 HP Hayward pump, 425 sq ft Hayward Swimclear cartridge filter, Pentair auto chlorine feeder, Hayward Navigator suction cleaner, spa w/spill over to pool, Hayward Super II pump running waterfall feature

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    Re: I need some Intex hard plumbing help.

    Oh btw do not use teflon tape on the fittings. Only liquid pipe dope. Otherwise it will leak
    28k gal, IG plaster, 2 HP Hayward pump, 425 sq ft Hayward Swimclear cartridge filter, Pentair auto chlorine feeder, Hayward Navigator suction cleaner, spa w/spill over to pool, Hayward Super II pump running waterfall feature

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    poolnew-b's Avatar
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    Re: I need some Intex hard plumbing help.

    Ok so I can use 2 in fittings off the pump and it looks like I still would need to make adapters for the pool connections. That's not a problem.

    The ball valves are the only thing holding me back from doing it this year. I'm just going to finish off this season with my intex hoses.

    I have to take the pool down this fall so I can trim my neighbors pine tree back a bit.

    So next spring the pool is getting hard plumbed and a nice little deck 1/4 the way around the pool.
    Intex Ultra frame 16x48
    Intex 1600GPH Sand Filter
    Taylor K-2005 test kit

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    Re: I need some Intex hard plumbing help.

    I just did my ProSeries pool plumbing, all hard 1.5" PVC and no problems at all.

    The Intex hoses are a special size thread, you can buy an adapter that goes from the intex threaded fitting to a more conventional NPT fitting. This is what I did.

    Let me connect to whatever I wanted on the other side.

    To give you an idea, this is what is upstream of my sandfilter/pump combo:

    Intex hose -> adapter -> 1.5" pvc -> 1.5" tee -> ball valve -> skimmer / suction cleaner.

    Downstream I have an adapter to pvc, then a 3-way splitter to supply water to my return, my aqua luminator flow-through return, and a water feature I plan in the future.

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    asxetos's Avatar
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    Re: I need some Intex hard plumbing help.

    Intex designed the OEM hoses for continuous flex.

    They obviously had in mind that the pool is not rigid and pool walls move when the pool is occupied, so it is better to have the hose flex with pool movement, than put repeated stress to the attachment points at the pool walls by using a more rigid hose (which would be cheaper to produce, as well).

    Although some pools do move more than others, ideally, this OEM flex hose design characteristic should be preserved when upgrading to hard plumping, by keeping at least some part of the OEM flex tubes attached to the pool walls and going to PVC from there on.
    Donīt be fooled by the sheep on my bike, I swim with fish in my sound equipped pool.

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    Re: I need some Intex hard plumbing help.

    I'm not sure that continuous flex is really the driver for the corrugated hose. Setup (especially with repeated takedowns) is easier with flexible hosing, as rigid piping would require everything to be placed exactly right every time.

    Plus, a lot of people cant really do freehand rigid pvc plumbing.

    Also, most of the threaded plumbing connections are NPT (a tapered thread that seals, so it doesnt require an extra seal like an o-ring). The Intex connections use a rubber face seal with what I believe is a 1.75" NC straight thread, so different sealing mechanism that facilitates multiple makeups and breakdowns. Another reason to use a hose as opposed to rigid pipe.

    JMHO

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    asxetos's Avatar
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    Re: I need some Intex hard plumbing help.

    I agree that plain flexible hose can do the job, unless it is bent around a very small radius, in which case, flow through the bent section could be significantly reduced, depending on how flexible is the flexible hose.

    My understanding is that Intex (and clones) had a real reason for not using plain flexible hose which is very cheap. Their choice of the corrugated design which tolerates bending around a small radius with no decreased flow, called for a significant increase in hose diameter, because with such hose walls design, good flow can only be achieved away from the hose walls towards the center, so the actual effective diameter is much less. Plus this OEM hose is still very lightweight and does not put much stress to its attachment points even when bent.

    Just my 2c.
    Donīt be fooled by the sheep on my bike, I swim with fish in my sound equipped pool.

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