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Thread: Survey: Air Compressor vs. Shop Vac

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    Survey: Air Compressor vs. Shop Vac

    Hi all, Thought it would be fun to put a survey out there to debate which is better for blowing out lines; and air compressor or a shop vac?

    I recently used both during my closing, and was surprised that the shop vac did better than the compressor for much of the process, especially in blowing the return lines wet. I was using a 150psi compressor with rubber expansion plugs with schrader valves. The shop vac was 4hp, and did not have any type of air tight seal where I connected it (like the compressor did with the expansion plugs).

    The polls are now open.....
    10k gallon fiberglass freeform pool, Paramount SwingJet system, Dolphin DX5 robot, Pentair 48" Tagelus sand filter with glass media, WhisperFlo 1 HP pump, Hayward H200FDN natural gas heater, TF-100 Test Kit, and, of course, Margaritaville Tahiti blender!

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    Re: Survey: Air Compressor vs. Shop Vac

    Cyclone here, you will be amazed at the volcano it creates in a main drain

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    Re: Survey: Air Compressor vs. Shop Vac

    I just use a small compressor, I know it doesn't get out 100% of the water, but it gets out most. I just didn't need another tool in the shed that takes up space that I only use once a year.
    19,000 gal - Vinyl IG - Sand filter -1.5hp. - Taylor k 2006 - Loop Loc cover

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    Re: Survey: Air Compressor vs. Shop Vac

    I used a leaf vac for the desk jet lines and thought most of the water was out until I then tried the compressor and had a lot more water come out.


    18x36 Vinyl, sports depth, 8' Roman steps at each end. Hayward 1.5hp 2speed pump, catridge filter, 2 skimmers, no main drain, 3 SR Smith Treo LED lights

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    Re: Survey: Air Compressor vs. Shop Vac

    Hi. Thanks for some of the initial replies! I blow my return lines (2 lines, 6 returns total) wet, from the equipment pad and was very surprised how much more air movement I was getting with the shop vac. The water was bubbling up over the deck/coping. I have to use the compressor for my MDX floor drain and SDX sidewall drain, as I need to blow wet from the deck canister with schrader plugs and space is tight in the canister. Also, I used both to blow out all the lines at the equipment pad (ie heater, etc) and again was surprised at the shop vac vs the compressor.
    10k gallon fiberglass freeform pool, Paramount SwingJet system, Dolphin DX5 robot, Pentair 48" Tagelus sand filter with glass media, WhisperFlo 1 HP pump, Hayward H200FDN natural gas heater, TF-100 Test Kit, and, of course, Margaritaville Tahiti blender!

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    jimsky's Avatar
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    May 2014
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    Re: Survey: Air Compressor vs. Shop Vac

    Cyclone for me. I used to use a compressor but now HUGE volume and great pressure for as long as I need it, all at the flick of a switch. Main drain bubble stream was so much bigger compared to my old compressor. The Cyclone also worked great blowing out my solar panels.
    19,200 Vinyl IG, Hayward 1HP Super Pump, Hayward DE-2400 Filter, Stenner 45MHP10 with 15 gallon tank, Dolphin Nautilus, Roof Mounted SunGrabber Solar Panels with separate 3/4HP pump and self-designed solar pump controller. Stand alone 4 person MasterSpa hot tub.

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    Re: Survey: Air Compressor vs. Shop Vac

    Excuse my ignorance, but what is a cyclone?
    35000 gallons
    Hayward Sand Filter
    Jandy AquaSeries Ei Pure Salt System
    IG
    Vinyl
    Pentair Superflow 1hp

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    jimsky's Avatar
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    May 2014
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    Re: Survey: Air Compressor vs. Shop Vac

    19,200 Vinyl IG, Hayward 1HP Super Pump, Hayward DE-2400 Filter, Stenner 45MHP10 with 15 gallon tank, Dolphin Nautilus, Roof Mounted SunGrabber Solar Panels with separate 3/4HP pump and self-designed solar pump controller. Stand alone 4 person MasterSpa hot tub.

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    Re: Survey: Air Compressor vs. Shop Vac

    Shop vac. And you have to find the right one. I do not have bottom drains so that makes my decision easier. If I had floor drains and a deep end I would go with a cyclone. It is $300 and it is worth having the insurance and sleepability.


    30x20 vinyl IG, Hayward SD60 with Pentair Dynamo 340219 2HP pump, Compupool CPSC24 SWG, Hayward H200FDN heater. APC automatic pool cover.
    Central Illinois

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