Ahh some purge question

[hightechburrito]

Just got back from a trip and I have some cloudy water (I thought o have it enough chlorine before leaving but it burned through more than I expected). I’m due for a refill so no big deal, I’ll be draining and refilling rather than adding a bunch of chemicals to recover.

I have some Ahhsome that I was planning on using on my next refill, should I put it in the cloudy water, or drain and refill and then do the ahhsome treatment? Or something else?

Thanks.

 

[wireform]

Hight
You want to keep the bad water for the Ahh-some purge and follow their instructions then when done drain all of it as best you can and refill.

 

[hightechburrito]

Thanks. I found the ahhsome instructions that say to have a sanitizing level of chlorine during the purge. Should I shoot for SLAM level or just the standard level for my CYA?

Another few questions I’m mainly just curious about:

1) I put what should have been enough chlorine to bring it to SLAM level, but it only got about 40% there. Does it make sense that most of the chlorine is getting ‘used up’ killing whatever is growing in the water so I don’t see the expected FC level?

2) The pH was also unusually low when I first tested the cloudy water. My previous pH was 7.6 and it was down to 7.0 (or maybe lower), this was before I added any chlorine. Does algae (or whatever else) is growing lower the pH?

 

[Ahhsomeguy]

Answer to Hightecburrito: Wireform’s post is correct. Add the required amount of Ahh-some Gel to the present water BEFORE DRAINING. You really don’t need a slam amount of sanitizer prior to purging or providing the plumbing colonoscopy. We like to have a minimum of your typical sanitizer in the water when the slime and bio-gunk is releasing. Biofilms can contain a multitude of bacteria once we expose the innards from it’s protective canopy outer layer. Gloves are recommended if your hands come in contact with the discolored sticky grit-like particles that will form at the waterline and especially in your filter well area. So, add the gel, run the jets, wipe the visible gunk before it dries and adheres to the shell. Simply use a garden hose to spray the stuff you see clinging. The pressure will breK it up into small specks that will drain out on the ground. Ok to pump or drain the purged water to the grass. Keep dogs and cats away from the drain area until it dries.

 

[Mdragger88]

Thanks. I found the ahhsome instructions that say to have a sanitizing level of chlorine during the purge. Should I shoot for SLAM level or just the standard level for my CYA?

Another few questions I’m mainly just curious about:

1) I put what should have been enough chlorine to bring it to SLAM level, but it only got about 40% there. Does it make sense that most of the chlorine is getting ‘used up’ killing whatever is growing in the water so I don’t see the expected FC level?

2) The pH was also unusually low when I first tested the cloudy water. My previous pH was 7.6 and it was down to 7.0 (or maybe lower), this was before I added any chlorine. Does algae (or whatever else) is growing lower the pH?

1 - it could be being rapidly consumed by the organics in the tub or it could be old bleach that is less potent or a combination of the two
2- if u haven’t used the tub & it has sat idle with minimal turbulence the ph might be lower than it usually is when u test during high usage times- this is why I recommend testing/adjusting the ph when the water is “at rest” generally before soaking Vs after
* if u used dichlor to chlorinate before u left it would have lowered the ph as well as it is acidic- see PoolMath effects of adding.

 

[hightechburrito]

1 - it could be being rapidly consumed by the organics in the tub or it could be old bleach that is less potent or a combination of the two
2- if u haven’t used the tub & it has sat idle with minimal turbulence the ph might be lower than it usually is when u test during high usage times- this is why I recommend testing/adjusting the ph when the water is “at rest” generally before soaking Vs after
* if u used dichlor to chlorinate before u left it would have lowered the ph as well as it is acidic- see PoolMath effects of adding.

Thanks.

I'm assuming it's most likely just getting consumed. I did a test of my chlorine (10ml chlorine into 1L water, 10ml of that into 1L water) and got roughly 10ppm FC, so my raw chlorine is about 10% still. Checking back on my PoolMath logs I just got lazy, I added 200ml of 10% bleach, which should have added 10ppm of FC, then I was out of town for 9 days. Between the hot water and the ozone generator my tub goes through about 2ppm of FC per day, so it probably say for at least a few days with 0ppm FC.