How to remove calcium Deposits around pool?

How do you remove calcium deposits around a pool? How can I do this without affecting the grout? Please let me know advice…

Muriatic acid, don’t breathe it in!

You purchase it at the pool store, pour it straight out of the bottle, then rinse off with pool water, repeat until the build-up is gone.
Don’t get it on the deck, specially if it’s painted.
You may need a pumice stone/block to scrub off the bulk before/instead of the acid
The pumice will scratch the tile, so only use it on the walls.

Before putting acid into the pool test the calcium level, if you’re low then it will pull from the walls, and ergo appear the drips.
Test the pool once a month for stabilizer and calcium, also clean the filter once a month. (Chlorine weekly)

Basically if you/they have a pool guy, he should be taking care of all this

If you’re servicing a client’s need to remove the calcium then this is how you do it.

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Thank you very much I am servicing a client. It’s calcium deposits that are on the tile, and retaining wall where the jacuzzi has waterfall down to the pool. I should test the water before to see the calcium level? I told my customer to drop the pool level down 5 in. After I’m done with the process, should I test it again? If it is high should I tell her to remove water and refill pool

No lol you’ll be fine.

Muratic acid will actually drop the PH… so you’d want the PH boosted to 8-9.

Honestly you’ll be fine though…no need to worry about the PH of the pool. Let them know to test and adjust there chems accordingly after you are done

Calcium Carbonate, or CaCO3(like my name) is common scale. Ues, HCl will remove it the fastest, but the fumes are truly horrible. Any scale remover or ice machine cleaner could also handle it, and the ice machine cleaner will take longer but those are usually citric or phosphoric acid and they don’t have the fumes. So you could conceivably put the ice machine cleaner on a rag and hold it on the calcium…wear a glove OF COURSE, but you can’t do that with straight up HCl.

I own a pool and agree, the chemical balancing isn’t on you. Just mention that you used an acid and they should check their pH levels. Also, they should take some pool water to their local store and have the chemicals checked monthly if not bi-weekly.

P.S. I have a salt water pool, you don’t have to balance it like a chlorine pool

Have it media blasted

What is the process to remove calcium deposits off of pool the tiles without it hurting the grout? Please let me know advice…

use search functions so many conversations on that topic… top right hand little magnify glass…


Muratic plus scrub brush and water
Mix 10 to 1 apply then scrub and rince . If it doesn’t sit long it won’t hurt the grouting.

Recently found this at my local Menard’s for $8.99. A mild acid based product…it worked pretty well to take white haze off of pavers. But as @florida_condo_cleani mentioned, Muratic would be higher strength, more aggressive acid. If i’m not mistaken. One of those products should do the trick

I didn’t dilute this product, just pre-wet the area, then applied it with a pump sprayer, scrubbed the pavers with a stiff bristle brush, let it dwell for 10-15 min while misting it a couple times, then rinse.

Edit: I also compared this to good old white distilled vinegar, and honestly the vinegar did a great job to remove the white haze as well. I think the Akona product was a little better, but I might be biased because I spent $8.99 on the Akona and $2.69 on the white distilled vinegar :stuck_out_tongue:

Worth a shot for those calcium deposits

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Thank you. I have one more other question, do I need to tell my customer to empty the pool or can I grub and use the acid with the pool full. I told her to drop the water level down 5 in. Should I tell her that after I remove the calcium deposits it’s best to empty your pool? Thanks guys for all the answers

This i’m not sure of. I would assume you need to do whatever it takes to be sure none gets in there, and if you suspect it did, then drain it.

Someone else with more experience around pools will probably chime in

I wouldnt. The water will dilute it. The Ph might be off but not much with that much volume


Muriatic. Go to pool shop and get a tile calcium remover. It will be a thick gel containing acid. Scrub, dwell, rinse. Some are just really bad and need to be polished with a medium grinding wheel.

Unless water is already out of balance, that bit of acid wont make the water fall out. If its decent sized pool. Thats why you get the gel. Like roof washing (cling on, roof snot) it makes the acid cling to vertical surfaces.

@Jordie , is there a way to merge two (nearly identical) threads? There is a lot of info being repeated, overlooked, etc. due to there being two threads started by the same poster.

Done. Thank you.

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No need empty the pool!

Only lower the water level if you can’t reach the calcium buildup, but being on the tile you’re fine, leave the water where it’s at (mid tile)

Don’t test the pool, have them hire a professional pool cleaner to maintain their pool. Not worth the money unless you got a route

This is very timely since I have job coming up like this. The concern for me it that because of the way it’s laid out I have be in the pool to clean it. This has me thinking battery operated drill with a flapper wheel to get the heavy stuff off. It’s a salt water pool so IDK what the chem effect will be. I’m punting that to the pool guy. The customer tried muriatic herself with little to show for it.

Alright I’m curious about this. Post some pictures please.

Very timely indeed. A customer just text me these images. Normally I turn down this type of stuff but she wants the house, drive, and fence done as well.

My plan from reading this thread is to dilute muratic acid at 10:1 and scrub. I’ll saturate the surrounding area as if Roof Washing. Does anyone see anything wrong with this plan.

I’ve acid washed my pool but I did it at full strength. I still have my respirator.