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Thread: Replacement Adapter with O-ring for Pool Filter Pressure Gage

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    Paul Jones's Avatar
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    Replacement Adapter with O-ring for Pool Filter Pressure Gage

    The pool manufacturer used a simple rubber gasket and NPT to 5/8-18 adapter to attach a pressure gage to the pool filter canister. The rubber gasket is exposed to sunlight and eventually degrades and allows the pool filter system to loose pressure. I made a new adapter from C360 brass. The adapter uses a Buna N O-ring 115, thread NPT 1/4-18, and single point threaded 5/8-18, and a 0.125" thick brass washer. The adapter has 0.3" high flats milled for a 1" wrench.
    Attached Thumbnails Attached Thumbnails Replacement Adapter with O-ring for Pool Filter Pressure Gage-pool-filter-pressure-gage-adapter-o-ring-seal.jpg   Replacement Adapter with O-ring for Pool Filter Pressure Gage-single-point-threading-fitting-pool-filter-gage.jpg   Replacement Adapter with O-ring for Pool Filter Pressure Gage-small-o-ring-cutting-tool-limited-access-parts.jpg   Replacement Adapter with O-ring for Pool Filter Pressure Gage-small-o-ring-cutting-tool-limited-access.jpg   Replacement Adapter with O-ring for Pool Filter Pressure Gage-using-unimat-mill-adapter-flats.jpg  


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    Jon (01-11-2016), kbalch (01-11-2016)

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    Paul Jones's Avatar
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    Pool filter pressure gage air release valve handle improvement

    I made two improvements to the pool filter pressure gage air release valve handle. Years ago replaced the slow-to-open screw valve with a 1/4 turn petcock valve for releasing the air build-up at the top of the pool filter. Over time the petcock valve becomes harder to turn so I added a copper handle. The most recent modification was adding a stainless steel sleeve for better support of the slotted section on the copper pipe and added a knurled stainless steel handle. The stainless steel is T-303 and machines very easily.
    Attached Thumbnails Attached Thumbnails Replacement Adapter with O-ring for Pool Filter Pressure Gage-pool-filter-pressure-gage-air-release-valve-handle.jpg   Replacement Adapter with O-ring for Pool Filter Pressure Gage-pool-filter-air-release-valve-handle-threaded-ss-handle.jpg   Replacement Adapter with O-ring for Pool Filter Pressure Gage-pool-filter-air-release-valve-handle-modification.jpg   Replacement Adapter with O-ring for Pool Filter Pressure Gage-pool-filter-pressure-gage-air-release-valve-handle-sleeve.jpg  


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  4. The Following User Says Thank You to Paul Jones For This Useful Post:

    kbalch (02-02-2016)

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