Muriatic Acid

bbecky75

Well-known member
Apr 7, 2010
95
0
43
Jasper, Alabama
#1
I have a sand filter and was told to clean the sand by putting the filter on backwash and pouring Muriatic Acid into the skimmer. Is this true? If so, how much muriatic acid? Also, my water is very clear however the sand is probably about 4to5 years old.
 

RobbieH

LifeTime Supporter
TFP Expert
Aug 30, 2010
4,052
0
52
Dallas, TX
#2
Do not pour acid into your skimmer!

The only time you should use MA is for lowering the pH in your pool or for cleaning your salt cell, if you have one. You add MA to the pool by pouring slowly near an inlet.

Why do you think you need to clean the sand? I've never done anything on mine but backflush, although I have heard of some using a cleaner to get rid of sunscreen/tanning oil/that sort of thing. There is a cleaner specifically for that, but it's not MA.

Your sand is actually around 4 billion years old. Don't let the pool store talk you into buying new sand.
 

Linkterfur

Well-known member
Feb 26, 2012
59
0
Stowe, VT
#3
Definitely no need for the MA. A filter cleaner or "degreaser" as it is sometimes called may help clean the sand a bit. Just make sure you are using the correct backwash procedure.

I've seen filter sand that's been used for 8 years and still filtering just fine. If you are worried that much you can shut off the pump, release the pressure from the filter and open the top to skim anything that might be stuck, make sure to replace any lost sand.
 

RobbieH

LifeTime Supporter
TFP Expert
Aug 30, 2010
4,052
0
52
Dallas, TX
#4
I put in a new filter last year, the sand in mine was installed around 1990 and still worked fine. The only reason I changed it was because I put in a new sand filter.
 

bbecky75

Well-known member
Apr 7, 2010
95
0
43
Jasper, Alabama
#5
Thanks for everyone's advice and comments!! I truely love this site and the quick responses that never fail !! Great job to everyone envolved!!!!!

I will not use the acid and since my water is perfectly clear and all test readings are perfect, I'm leaving everything as is!!! As they say " if it's not broken, don't fix it " :hammer:
 

bbecky75

Well-known member
Apr 7, 2010
95
0
43
Jasper, Alabama
#6
bbecky75 said:
Thanks for everyone's advice and comments!! I truely love this site and the quick responses that never fail !! Great job to everyone envolved!!!!!

I will not use the acid and since my water is perfectly clear and all test readings are perfect, I'm leaving everything as is!!! As they say " if it's not broken, don't fix it " :hammer:

opps, typo.. should be "involved"
 

Durk

Well-known member
Jun 14, 2007
654
0
New Jersey
#7
I ran the same sand from 1970 to 2003 (Lomart Stainless Steel Filter) on a 40K gal pool. Pool was crystal clear all 30+ years. I have never bought into the new sand idea.