Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 17 of 17

Thread: Is HCL - Muriatic Acid the same thing as HCI - Hydrochloric

  1. Back To Top    #1

    Join Date
    Aug 2012
    Location
    Serbia (Europe)
    Posts
    65

    Is HCL - Muriatic Acid the same thing as HCI - Hydrochloric

    Is HCL - Muriatic Acid the same thing as HCI - Hydrochloric Acid?

    I googled it and i read that its the same thing however, I want to ask you guys -- reason being I've used this acid to clean my pool, and I am a bit worried of adding it to lower PH scared it will harm swimmers in my pool, particularly kids?

  2. Back To Top    #2
    ctakim's Avatar
    Join Date
    May 2012
    Location
    Phildelphia, PA
    Posts
    12

    Re: Is HCL - Muriatic Acid the same thing as HCI - Hydrochlo

    Yes, it is the same thing. Muriatic acid = hydrochloric acid.
    Crackin' Toast, Grommit!
    29,000 gallon in ground, white plaster, with spillover Spa with 6 jets, 1 hp pump, Jandy DEV-60 DE Filter, Raypak 406a 400K Natural Gas Heater, Baracuda S3 Robotic, Jandy Aqualink RS4, TF-100 Test Kit
    New BBB enthusiast

  3. Back To Top    #3

    Join Date
    Aug 2012
    Location
    Serbia (Europe)
    Posts
    65

    Re: Is HCL - Muriatic Acid the same thing as HCI - Hydrochlo

    thanks.

    one bottle of hcl is 1 dollar.. 1kg of ph minus at the pool store is 14 dollars.. how come such a huge difference in price?

  4. Back To Top    #4

    Join Date
    Dec 2010
    Location
    Gilbert, AZ
    Posts
    9

    Re: Is HCL - Muriatic Acid the same thing as HCI - Hydrochlo

    Muriatic Acid is the old name for HCl, before we understood atomic theory. Kinda like pure sulfuric acid is sometimes referred to as oil of vitriol.
    11000 gal IG pool, pebbletec surface, Cartridge filter, In Floor cleaner

  5. Back To Top    #5
    stev32k's Avatar
    Join Date
    Mar 2009
    Location
    Mobile, Alabama
    Posts
    492

    Re: Is HCL - Muriatic Acid the same thing as HCI - Hydrochlo

    Quote Originally Posted by SerbianPoolGuy
    thanks.

    one bottle of hcl is 1 dollar.. 1kg of ph minus at the pool store is 14 dollars.. how come such a huge difference in price?
    That's how pool stores stay in business. There are several examples of the same thing. The pool store I go to has 50 lb bags of sodium bicarbonate for $22. They also sell 10 lb buckets of "alkalinity up" which is the same thing for $14.95. I saw a sales guy sell a customer two of the $14.95 buckets and asked him why he did not recommend the 50 lb bag and he told me Alkalinity up was sodium hydrogen carbonate not sodium bicarbonate and it did a better job. Actually they are exactly the same thing.
    20' x 40' IG with vinyl liner volume approx. 35,000 gal.1.5 H.P. main pump, Polaris 280 cleaner W/ 3/4 H.P. booster pump
    Hayward sand filter, 3.14 sq ft, 62 gpm. Stenner 45 MPH10 chlorine feed pump. 1 micron final filter bags (home made and very effective)

  6. Back To Top    #6

    Join Date
    Aug 2012
    Location
    Serbia (Europe)
    Posts
    65

    Re: Is HCL - Muriatic Acid the same thing as HCI - Hydrochlo

    haha incredible

    .wife is shocked i want to pour acid she uses to clear lime build up into our pool worried it will burn the skin of our 2 year old

  7. Back To Top    #7
    UnderWaterVanya's Avatar
    Join Date
    Jun 2012
    Location
    Mint Hill, NC
    Posts
    2,589

    Re: Is HCL - Muriatic Acid the same thing as HCI - Hydrochlo

    Quote Originally Posted by SerbianPoolGuy
    haha incredible

    .wife is shocked i want to pour acid she uses to clear lime build up into our pool worried it will burn the skin of our 2 year old
    Remind her that acid is sold by % and that percentage determines how strongly it reacts. Then make some tea and pour a glass into an opaque glass and have her look at the color. Then take the same amount of tea and pour it into a 5 gallon bucket filled with water. Show the color difference to your wife to demonstrate how dillution is going to impact the concentration of the acid and remind her that the pool volume is many many many many times the volume of the bucket. By the time you add that acid to a pool - it's no longer really strong at all - but it does react with the alkalinity and lower the pH.

    When you add the acid - just make sure everyone stays out of the pool for 30 mins while the pump is running. This will circulate things to the point there are not any concentrated areas. You might also brush the pool at the same time - this will help mix it up faster than not brushing and kills two birds with one stone.
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

  8. Back To Top    #8

    Join Date
    Aug 2012
    Location
    Serbia (Europe)
    Posts
    65

    Re: Is HCL - Muriatic Acid the same thing as HCI - Hydrochlo

    the hcl i got is 12% but they also got 16 to 18% are these both ok?

  9. Back To Top    #9
    UnderWaterVanya's Avatar
    Join Date
    Jun 2012
    Location
    Mint Hill, NC
    Posts
    2,589

    Re: Is HCL - Muriatic Acid the same thing as HCI - Hydrochlo

    Quote Originally Posted by SerbianPoolGuy
    the hcl i got is 12% but they also got 16 to 18% are these both ok?
    Those should all work fine. The stuff I got is 31.45% which takes a lot less at a time.
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

  10. Back To Top    #10

    Join Date
    Apr 2012
    Location
    SW Ohio
    Posts
    456

    Re: Is HCL - Muriatic Acid the same thing as HCI - Hydrochlo

    My wife and son had the same concerns about adding muratic acid to our pool, she was so worried about it that she googled it and called the.pool stores and asked them if it was ok and then she believed me. Of coarse she is the same one that thought bleach in the pool would turn her hair green, she is so silly.........Mike
    18x52 intex ultra frame pool 6981 gallons, 1 HP LL pump with 19 in sand filter,BBB method,borax 50ppm
    leslies DPD test kit + fas-dpd chlorine test kit + borates test strips
    thru wall skimmer,hard plumbed with 2 returns 1 1/2 sch 40 pvc
    1 large fountain 1 inch sch 40 pvc,shut off ball valves on all

  11. Back To Top    #11

    Join Date
    Aug 2012
    Location
    Serbia (Europe)
    Posts
    65

    Re: Is HCL - Muriatic Acid the same thing as HCI - Hydrochlo

    Since I refilled the pool I poured in about 13 gallons... (50 liters or so).. not at once, but gradually as I monitor the PH.

    My wife says the pool water smells like HCL, i think it smells like chlorine.... in any case it smells like some chemical.. however, I keep the PH at 7.4, and the CL at 3-4FC.. so why/how come there's chemical smell?

  12. Back To Top    #12
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Is HCL - Muriatic Acid the same thing as HCI - Hydrochlo

    generally the pool smell is from CC in the water, which also indicates not enough FC.

    Remind us what your CYA level is to determine if your reported FC is enough. Do you have the ability to test for CC?

    Posted from my Droid with Tapatalk ... sorry if my response is short
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  13. Back To Top    #13

    Join Date
    Aug 2012
    Location
    Serbia (Europe)
    Posts
    65

    Re: Is HCL - Muriatic Acid the same thing as HCI - Hydrochlo

    I'm still waiting for my Taylor K2006 kit.. its in the mail.. right now can't test CC as locally they only sell FC/PH testers

  14. Back To Top    #14
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Is HCL - Muriatic Acid the same thing as HCI - Hydrochlo

    could not remember if you had gotten the kit yet ... it will make knowing your pool so much easier.

    Posted from my Droid with Tapatalk ... sorry if my response is short
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  15. Back To Top    #15

    Join Date
    Aug 2012
    Location
    Serbia (Europe)
    Posts
    65

    Re: Is HCL - Muriatic Acid the same thing as HCI - Hydrochlo

    I can't wait, it's been total chaos to find it, but I ordered it through a friend in the states, as well as from Taylor's European distributor in Slovakia.
    I have to update my research thread, Taylor can be bought in the EU

  16. Back To Top    #16

    Join Date
    Mar 2007
    Location
    San Rafael, CA USA
    Posts
    12,082

    Re: Is HCL - Muriatic Acid the same thing as HCI - Hydrochlo

    Quote Originally Posted by UnderWaterVanya
    Quote Originally Posted by SerbianPoolGuy
    the hcl i got is 12% but they also got 16 to 18% are these both ok?
    Those should all work fine. The stuff I got is 31.45% which takes a lot less at a time.
    Just note that the 31.45% stuff tends to fume while the lower concentrations do not. That is their primary advantage, assuming you can get the lower concentration for a proportionately lower price.
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

  17. Back To Top    #17

    Join Date
    Aug 2012
    Location
    Serbia (Europe)
    Posts
    65

    Re: Is HCL - Muriatic Acid the same thing as HCI - Hydrochlo

    The stuff I get for around 60 cents a bottle (Liter) is probably 6-8% not 12%

Posting Permissions

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