Sandblasting Large Swimming Pool

plazaman

Been asked to quote a pool roughly 4200 Sq.ft of total area to be blasted,

About how many blasting hours do you think? Im worried that I might take a while with my 210 CFM compressor. I'll be using coal slag on this on, something smaller than the 12/40 slag that i used on previous job because 1) i profiled the concrete too much , and 2) for a faster strip rate.

With cleanup on all, Im figuring $10,500, i'll be washing down the entire deck and pool, blow & broom surrounding areas, tarping around 3 sides, maybe 9'-10' high

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BulldogMedia

With out a test blast it is only a guest. I would say between 50 and 70 hours with clean up????

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plazaman

if thats the case, i dont think its possible to my compressor for this job. I will take too long. 70 hours / 6 blastings hours per day = 11.6 days!

Tony, if i were to rent a 375 CFM or maybe even 600-750 CFM, how much would you estimate?

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killzoneq2

I will be watching this post close. Keep us informed... I heard that stuff is hrd to remove..

CO2Solutions

Wow! ok, that's a big pool - but really that much time to blast? stuff must be really tough to remove. Remind me to never take on a pool if I get into other types of media blasting. Of course we don't have pools up here in Canada, only ice rinks so no worries I guess...lol.

plazaman

not really hard to remove, I'll be using coal slag,

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user20594

four hours if it is epoxy all you have to do is profile the surface. if it is swimimng poolpaint. Burn it then bury it with home owner stuff or wash it with a 4,000 psi washer. That is if the caulking has held. If the caulk is gone you will have to grind the cracks and use vulkem 114 with a primer to seal them

user20594

get a new caulk gun. A front load one

user20594

update, last year super sticks took me to 4000 sq ft per two blast nozzles per 10 hour day. I used the same nozzles through the winter and found no reason to use these. in close range they do not work. they increase the velocity of abrasive .25 percent on big blue steel. the nozzle does not work on small steel because it does not bend and it is hard to use. I am sorry to report you cannot increase your production unless you are on big steel jobs.

Poolman

Hi guys,

From the experience we've had with local sandblasters, a 20x40 pool 3-8 feet deep takes a day for them to blast and the cost is typically $2k.

Hope this helps.

Scott

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Scott

Is this going to be expensive?
It's all relative.

killzoneq2

For some reason tha sounds low to me..

plazaman

yes, very low to me.

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BLASTPRO

We use the largest media we can get when dealing with pools, most of the coating that the following company lays is comprised of concrete so the more profile the better we have been told so we beat the hell out of it with the media then we reuse it once or twice by sweeping it up into piles then sift and reuse. This process enables us to save on media and provide the profile that the coating companies like. We blasted a very very large public pool this summer and it took 3 blasters going almost 24hrs a day for 2 weeks to get it done. We charged about 65k for the total job and we used about 35 2k pound bags of glass.

Blast&Coat

Blastpro is it out of line for me to ask what your profit margin was ater you paid your labor and materials?

BLASTPRO

without getting into alot of details we had about 18k into total cost including labor for this entire job, my average labor rate is 10$

Blast&Coat

47K? very nice for 2 weeks even at 24/7! well worth it for that kinda check.

Goddard3100

blasting pools is my main business.. your probably looking at 24 to 36 hours to blast a pool that size gathering you are punting in 12hr days . it should not take more than two and a half days to blast and a half a day clean up... i generally charge $200 hr based on 36 hour of blast & clean up... so about $7200 but if you can get 10.500 great but the average is around $5000 to $8000 a pool...

user20594

This year no job will run over 2.15. Exterior.