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  • FDWTK - sandblasting info

    Need to resurface the pool which means sandblasting the old paint and plaster. Anyone here do mobile sandblasting or recommend someone who does it?
    happy to do it myself if I can find anyone that hires it but so far have had no luck with finding any hire places that have them. Also if anyone has done this rough hourly/total costs would be appreciated so I can work out the budget. And no, I am not getting a fiberglass hell or a replaster on it -$12k is farking ridiculous.

  • #2
    I assume it's a concrete pool?

    Couple things to consider first of all is dust abrasive blasting is extremely dusty so some sort of containment will be needed if u like ur neighbours, next is getting rid of the abrasive and removed paint/plaster/concrete waste. This could be over a tonne by the time ur done and landfill joints will not accept contaminated garnet.
    Abrasive blasting won't just remove the paint and plastic it will remove a considerable amount of concrete as well so depending how thick the concrete pool is at the moment you may need to factor in re-concreting it.
    The mobile guys I know will need to get a truck within a couple meters of the pool edge as generally you will only run 20 or 40mtr lengths from the pot any longer and it becomes a safety issue.
    It is possible to run what's called a blast recovery system to control dust but you can only use a small nozzle so blasting an average sized pool will take at least a week!
    Hire equipment will cost you around $900 per week plus the cost of garnet (arounds $400 per tonne) you will also need to hire a big compressor at least 400cfm. Though I would not advise using this type of equipment if u are not experienced as it's pretty dangerous stuff, also you can quiet easily do more damage to the pool.
    B19 Oakford V.B.F.S

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    • #3
      Mike is spot on about getting rid of the left over sand and paint...

      It costs about 3 to 4 times the cost of a clean tonne of abrasive to get rid of it...

      Listen to this guy Tim...

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      • #4
        Yeah I have done blasting in the past but not on a pool. Aware of the containment issues I'm just trying to gauge the costs of DIY compared to getting someone in. If it is gonna take a week or so to do it then I think it will be get someone in - I'm too bloody lazy to spend that much time on it.
        [MENTION=14387]Mr_Mike[/MENTION] - any recommendations of mobile guys?

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        • #5
          Neighbour installed a vinyl liner on his concrete pool about 15 years ago, not sure of costs but he's had no problems and it still looks good.

          I'm considering renovating mine with 40 cubic metres of sand...

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          • #6
            Originally posted by Flamedance View Post
            Yeah I have done blasting in the past but not on a pool. Aware of the containment issues I'm just trying to gauge the costs of DIY compared to getting someone in. If it is gonna take a week or so to do it then I think it will be get someone in - I'm too bloody lazy to spend that much time on it.
            [MENTION=14387]Mr_Mike[/MENTION] - any recommendations of mobile guys?
            I'll ask a couple guys tomorrow and see if anyone would b interested in doing it. Roughly how big is the pool and is there access for a 8t truck to get near-ish?
            B19 Oakford V.B.F.S

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            • #7
              Originally posted by Rich... View Post
              Mike is spot on about getting rid of the left over sand and paint...

              It costs about 3 to 4 times the cost of a clean tonne of abrasive to get rid of it...

              Listen to this guy Tim...
              That's if you can find anyone to take it, most of my customers have massive piles of used abrasive on site and can't do anything with it. It's to broken down to be an effective abrasive anymore and to contaminated to go in landfill
              B19 Oakford V.B.F.S

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              • #8
                I had 20 tonne of it at one stage and was making more...

                I looked into a cleaning/recycling system, but the cost was up there and it still didn't solve the issue...

                Sooner or later you have to get rid of the shit and I could only find one place that would take it, maybe...

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                • #9
                  Yeah all a recycler does is separate out the paint flakes and fines means can reuse some if the abrasive but eventually it's gonna break down to an unusable size and just end up in a pile of bulk bags
                  B19 Oakford V.B.F.S

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                  • #10
                    Originally posted by Mr_Mike View Post
                    I'll ask a couple guys tomorrow and see if anyone would b interested in doing it. Roughly how big is the pool and is there access for a 8t truck to get near-ish?
                    Cheers mate. 10x5 approx 70k litres. Truck can get to within about 10ish metres of the pool

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                    • #11
                      I have spoken to a couple of the other tech guys here at work and basically it is completly illegal to blast in a residential premises so not even our dodgiest customers would do it.

                      Your only option is to purchase a small chinese pressure sand blasting unit from the likes of Gentronics, hire/borrow a small compressor and do it yourself these unit will be quiet enough to run in a residential area but they will only run a #3 Nozzle (3/16") so u will have a blast pattern about 20-30mm wide so as u can imagine its gonna take you an extremely long time to do a pool.
                      Last edited by Mr_Mike; 22-10-2013, 08:03 AM.
                      B19 Oakford V.B.F.S

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                      • #12
                        Apparently AAA sandblasting in Maddington claim on their website that they specialise in residential pool sandblasting?

                        Other than that, I've used Mills Signs in the past for mobile work with good results but that was commercial stuff in a nice open yard - they may also be worth a shot though.

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                        • #13
                          Originally posted by =Stevo= View Post
                          Apparently AAA sandblasting in Maddington claim on their website that they specialise in residential pool sandblasting?
                          lol why does this not suprise me
                          B19 Oakford V.B.F.S

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                          • #14
                            Will soda or walnut blasting do the job but chip less concrete away?

                            I have a guy for soda blasting.

                            Dubs

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                            • #15
                              Originally posted by Dubs View Post
                              Will soda or walnut blasting do the job but chip less concrete away?

                              I have a guy for soda blasting.

                              Dubs
                              Soda will work but its stupidly expensive you would be looking at over $5k just in abrasive. Walnut is an American thing and not commonly used in Aus so apart from being extremely expensive its not abrasive enough to do the job.

                              Another issue with blasting is residential area is the noise blast pots are very loud over 140db while blasting and can peak around 160db when the pressure is released in the pot.
                              B19 Oakford V.B.F.S

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