Become a TFP Supporter Pool Math Forum Rules Pool School
Page 1 of 3 123 LastLast
Results 1 to 20 of 59

Thread: Muriatic acid scares me

  1. Back To Top    #1
    markuszoom5's Avatar
    Join Date
    Jul 2014
    Location
    Liverpool NY
    Posts
    121

    Muriatic acid scares me

    Had to add some hydrochloric acid to pool to lower the ph that naturally likes to sit at 8 for some reason. Thst acid is pungent and scary. I really don't like handling it and mixing it with water. How does everybody else feel?
    Circa 20,000 gal IGP, 12 years old, Hayward SP2607X10, 1 hp single speed pump, Hayward S244T Sand filter, vinyl liner, using Aquacheck test strips and Taylor K-2006 Test Kit, 1 skimmer, 1 bottom drain, 2 jets (near stairs and on the opposite deep end)

  2. Back To Top    #2
    Mod Squad YippeeSkippy's Avatar
    Join Date
    Jan 2012
    Location
    'burbs of Augusta, Georgia
    Posts
    6,459

    Re: Muriatic acid scares me

    Yes, it is strong stuff but stuff that you can use safely with a few common sense guidelines. You can wear goggles and gloves. Don't mix it with water ahead of putting it in the pool. Some around here will just hold the entire gallon in the water near a return (with pump on!) and tilt it so it pours an estimated amount. Always brush the pool where you put it in so to mix it well in the water. Always stay upwind from it and avoid walking with a open container in case of trips/falls.
    My Amazon Smile for November12K Fiberglass IG, Infinity 4000 automatic cover, SWCG, Hayward Sand Filter, Hayward 1.5 Pump, Doheny Discovery Robot, Savi Melody LED pool lights, outdoor speakers and other assorted doo-dads. Sundance Altamar Hot Tub.
    Our pool build--> Our Pool Solved Our Sloping Yard Skippy's Cheap Pool Cooler -->Skippy's New Fountain

  3. Back To Top    #3
    Texas Splash's Avatar
    Join Date
    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
    Posts
    12,931

    Re: Muriatic acid scares me

    It's a chemical that demands respect, there's no doubt about it. But it's purpose and usefulness in pool chemistry can't be argued. It's perfect for lowering pH (and TA), and comes-in handy for other uses at times (i.e. cleaning scale). As with any volatile product, safety and respect for the item being handled are paramount. Not that we do it 100% of the time, but we should always remember to protect the eyes, skin, and watch the wind direction when we are around the fumes. Those safety items are critical. I've messed with the dry acid back in the day, and it was just too much of a pain for me to mess with. Also keep in mind there are lower strength muriatic acids out there. So even though you might pay a little more in the long-run by using twice as much, those lower strength MAs aren't quite so potent.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

  4. Back To Top    #4
    LittleTagAlong's Avatar
    Join Date
    Jun 2016
    Location
    Amarillo TX
    Posts
    119

    Re: Muriatic acid scares me

    I carry the Muriatic Acid out to pool in its closed container. Then put on my mask and gloves. After that, I use a Home Depot 5 gallon bucket and scoop up about a gallon or so of the pool water. Then standing upwind of the MA, I carefully pour required amount in to measuring cup and VERY slowly add that to the water in the bucket. I stand to the side of the return and slowly add the mixture to the pool, taking time for it to mix. I haven't been brushing after, but probably should. When I am finished, still with mask and gloves, I rinse bucket and measuring cup in return flow of pool.
    Last edited by LittleTagAlong; 08-03-2016 at 01:07 PM. Reason: incorrect amount
    AG, Intex 18' x48" Easy Set pool( =/- 5455 gal)
    Intex SF80110 sand filter & SWG ECO 7110, Hayward AquaCritter
    Well water, location is north Texas, usually up from late May to Oct.
    Taylor TF-100 test kit, TDS Digital Salinity meter and Taylor salt kit

  5. Back To Top    #5

    Join Date
    Apr 2013
    Location
    Sacramento, CA
    Posts
    2,769

    Re: Muriatic acid scares me

    1)Store in an open location away from the chlorine.
    2) pour by holding right over the water and slowly pouring in a small amount right in front of a running return. I just estimate from the jug.

    Many HD sell in two strengths 14.5% and 29% In my HD (Rancho Cordova, CA) they are together in the back of the garden section. I buy the strong stuff, you can get the weaker stuff Pool Math will do the noodle work.
    22k gallon IG pebblefina, Jandy 1.5 HP VS, Jandy CV Cartridge filter, Fafco solar panels, Polaris 360 supply side cleaner, waterfall

  6. Back To Top    #6

    Join Date
    Aug 2013
    Location
    Dallas, TX
    Posts
    78

    Re: Muriatic acid scares me

    I didn't know that you should brush the area where it is added. What can happen if you don't?
    23,000 gal. IG gunite pool, DE filter, elevated spa with spillover, Polaris 280 cleaner

  7. Back To Top    #7

    Join Date
    Jul 2014
    Location
    Hope Mills, NC
    Posts
    555

    Re: Muriatic acid scares me

    I just pour it in right in front of a jet. No big deal. If you spill it rinse quickly, don't breath the fumes and whatever you don't pour any on the grass, it kills it very quickly...not that I would know. Acids don't really need to be stirred into the water to work, they work by adding or removing ions, which happens at the speed of electricity.
    16 x 32 17500 gallons
    Vinyl in-ground
    Hayward 250# Sand Filter
    1 HP Pump
    Hayward SWG

  8. Back To Top    #8

    Join Date
    May 2016
    Location
    West Bloomfield, MI
    Posts
    649

    Re: Muriatic acid scares me

    I'm careful with it, but it doesn't scare me.

    I bought some DE to help my sand filter however, and that stuff wigs me out. It's sold in a loose bag inside a loose box, that basically says don't touch it or breathe it. Apparently it's banned by some municipalities...?

    I don't even like walking too close to that box.
    12,000 gal Diamond Brite indoor​ pool. Pentair Triton TR-60 Sand Filter +added DE, Lochinvar Energyrite ERN-200 gas heater, Pentair Multi-valve, Pentair SuperFlo VS pump, TF-100 kit, Pool Math App - iOS

  9. Back To Top    #9

    Join Date
    May 2016
    Location
    MD
    Posts
    195

    Re: Muriatic acid scares me

    Quote Originally Posted by Griswald View Post
    I just pour it in right in front of a jet. No big deal. If you spill it rinse quickly, don't breath the fumes and whatever you don't pour any on the grass, it kills it very quickly...not that I would know. Acids don't really need to be stirred into the water to work, they work by adding or removing ions, which happens at the speed of electricity.
    Good to know I may just brush anyways to make sure nothing silly happens
    IG, 25k gallons, 20x40 ft, Plaster, Pentair sand filter, variable speed pump, have a well, TF-100 test kit, Speed Stir

  10. Back To Top    #10

    Join Date
    Aug 2015
    Location
    Grandy, NC
    Posts
    131

    Re: Muriatic acid scares me

    Also do not combine in any manner with bleach. Even suggest you store away from each other. I forgot to rinse glass measure cup used for bleach and almost used to dose with MA. Fortunately, I sniffed the cup and rinsed thoroughly.
    19300 gal, AG vinyl, 1 HP Pentair Dynamo two stage pump, 5 yr old Hayward Vari-Flo sand filter, pool 14 yrs old, well water, testing with Taylor K2006

  11. Back To Top    #11
    markuszoom5's Avatar
    Join Date
    Jul 2014
    Location
    Liverpool NY
    Posts
    121

    Re: Muriatic acid scares me

    Bleach and muriatic acid will liberate chlorine gas and if you inhale it that might just be your last breath.

  12. Back To Top    #12

    Join Date
    Jul 2012
    Location
    Dallas, TX
    Posts
    179

    Re: Muriatic acid scares me

    I use this for both Bleach & MA dosing. I follow the "upwind" advice from other members here. I always add doses in the deep end of the pool in front of one of the Return Jets.

    Then I rinse the measuring cup in the shallow end.

    aaa.JPG
    - Pool Type: 15k Gal Gunite IG non-SWG / Built 1988
    - Pump: Pentair Challenger / Sweep Pump: Letro Model LA01N .75HP Single-speed / 6 hrs-day (1 turnover)
    - D.E. Filter: OEM: Nautilus (Pentair) #NS 36 / 36 Sq Ft / D.E. Charge: 3.6 Lb
    - Pentair 4-wheel Sweep LL505G - Booster Pump runs ~2 hrs/day

  13. Back To Top    #13
    Mod Squad YippeeSkippy's Avatar
    Join Date
    Jan 2012
    Location
    'burbs of Augusta, Georgia
    Posts
    6,459

    Re: Muriatic acid scares me

    You want to brush the area you've poured the MA in *just in case* some settles in one spot and it can mar the finish of your pool.
    My Amazon Smile for November12K Fiberglass IG, Infinity 4000 automatic cover, SWCG, Hayward Sand Filter, Hayward 1.5 Pump, Doheny Discovery Robot, Savi Melody LED pool lights, outdoor speakers and other assorted doo-dads. Sundance Altamar Hot Tub.
    Our pool build--> Our Pool Solved Our Sloping Yard Skippy's Cheap Pool Cooler -->Skippy's New Fountain

  14. Back To Top    #14

    Join Date
    May 2015
    Location
    Fullerton, CA
    Posts
    622

    Re: Muriatic acid scares me

    I was told to add the acid to water in a 5 gal bucket. I put about a gallon or more water in the bucket, pour acid into a plastic measuring cup and then slowly pour into the bucket with water. I then pour the bucket nto the deep end slowly in front of a return. when the pump is going. There are a number of safe methods.
    33x19, 3'4"-5'6", 7ft spa, baja reef, 14'x9', 18" deep, 10,668 Gal. Quartzite coping, Stonescape Tropics Blue mini-pebble, abalone & glass beads. Jandy Equip.(JXi heater, 2.7HPVS pump, PLC1400 SWG, CV580 filter, Aqualink, LEDs)
    TF-100, Doheny Discovery robot.

  15. Back To Top    #15
    PoolingAround's Avatar
    Join Date
    May 2016
    Location
    Katy, Texas
    Posts
    189

    Re: Muriatic acid scares me

    Am I only the one who pours from the bottle and just feels it out for how much they are adding?

    18k gallon, 20x32, salt IC20, gunite with quartz finish, raised spa with overflow, flagstone coping, moss rock waterfall, Pentair Intelliflo variable speed pump, Pentair Racer, Pentair pool pump, cartridge filter, heater, etc., acid dispenser.
    TF-100 kit for sparkling clean water.

  16. Back To Top    #16

    Join Date
    Oct 2010
    Location
    michigan
    Posts
    283

    Re: Muriatic acid scares me

    Pour and estimate in front of the return.

    Stretch my arm as much as possible and slowly pour in front of the return. Stay away from the fumes.
    15,000 gallon inground fiberglass pool with spa. 350lb Sand filter, 1.5 hp pump, and heater

  17. Back To Top    #17

    Join Date
    Jun 2009
    Location
    Rockland County, NY
    Posts
    52

    Re: Muriatic acid scares me

    Acid is heavier than water. Even if you pour it over the return jet, some will find it's way to the bottom before it is all thoroughly mixed in your pool water. Therefore, it is important to get the acid mixed and diluted as much as possible before it can sit on the pool bottom for any extended period of time. This is particularly important if you have a vinyl liner, since they don't take kindly to drastic changes in lowering levels of ph. Use the pool brush to help mix it in, and brush the sides as well as the bottom.
    22,000 gallon ig vinyl solar heated (panels and cover) zeolite filtrate

  18. Back To Top    #18
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,994

    Re: Muriatic acid scares me

    I pour only full bottles of bleach at a time, what's a couple extra ppm between friends? And I estimate about a quart at a time of muriatic acid straight from the bottle in front of a return. Downwind. Bottle floating so the opening is close to the water surface.
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  19. Back To Top    #19

    Join Date
    Jul 2012
    Location
    Dallas, TX
    Posts
    179

    Re: Muriatic acid scares me

    Good advice, diluting w/water; acid heavier; settling to bottom. I haven't seen any stains at the bottom of my Gunite pool but I think I'll switch to the 5-Gal dilution method; like the idea.
    - Pool Type: 15k Gal Gunite IG non-SWG / Built 1988
    - Pump: Pentair Challenger / Sweep Pump: Letro Model LA01N .75HP Single-speed / 6 hrs-day (1 turnover)
    - D.E. Filter: OEM: Nautilus (Pentair) #NS 36 / 36 Sq Ft / D.E. Charge: 3.6 Lb
    - Pentair 4-wheel Sweep LL505G - Booster Pump runs ~2 hrs/day

  20. Back To Top    #20

    Join Date
    Jun 2016
    Location
    Western Connecticut
    Posts
    46

    Re: Muriatic acid scares me

    I put on goggles, thick rubber gloves, and a mask, and then carry the closed bottle of the liquid to the pool (not putting the bottle down on the patio). I use a 2 quart measuring cup that I wrote "Acid Only" in big letters all over it in marker. I stay upwind and pour the amount I need and then put the measuring cup close to the water as I pour it in. One time I got a whiff of the fumes and I started choking immediately. Probably not the best thing to do.
    32,500 gallon in ground Gunite/White Plaster, Pentair Cartridge Filter, Pentair Propane Heater, Pentair Racer robot cleaner

Page 1 of 3 123 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •