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I come home this morning, turn on the filter, and see water waves coming out of my north skimmer. I know it has to be a critter, as I have had squirrels, rabbits, toads, frogs, and field mice. I pop the lid off of my skimmer and see a black and white tail: SKUNK! It was still alive, and tried to...

Dumb question of the day: when doing the OCLT, is it necessary to run the pump?

If my pool is completely in the shade, no direct sunlight, but the sun hasn't completely set yet, can I still take my sample for the OCLT? I don't have to wait for it to get dark do I? And if I take the morning sample 7 hours later, is that long enough? I work 3rd shift and was going to take...

Just got done testing: FC = 5 CC = 0 PH = 6.8 still aerating CYA = should be approaching 60, still dissolving stabilizer TA = 80 CH = 80 Water is crystal clear, I just hadn't encountered any granular film on the sides before this spring. I mainly added muriatic acid to get TA down, not so...

Pool is 10 years old and I cannot recall having an invisible fine grit like substance on the walls of my pool this spring upon opening. I got in it yesterday with a cleaning mitt and wiped the walls, steps, seats clean. Brushing it wouldn't take it off, but cleaning mitt and "elbow grease" did...

using the water balance for SWG pools, I lowered the TA to 80-90, but my ph is currently 6.8-7.0 I have the SWG running and a sump pump sitting on the steps shooting water up and breaking the surface. I have been doing this for a couple of days, should I just wait for my ph to creep up? FC =...

A big Texas thank you to Texas Splash for all your advice. My water is now crystal clear thanks to my first deep clean of a sand filter and a little DE cocktail added to the filter. We are off and running to another pool season. Thanks to all who make this site the best. My question now is...

Our pool was installed in the fall of 2006, what is a "deep clean" of a sand filter? Please educate me, oh "wise one"...

Thank you for the quick response Splash. I did a regular SLAM with low CYA (0-20) FC in the teens but still cloudy water after a week or so. The PH reading was when I started the SLAM. Here are today's current readings compliments of my wonderful TF100 test kit: FC 31 CC .5 PH 7.8 TA 100...

I am currently slamming my pool due to suspected mustard algae (again). A couple of years ago I had mustard algae which brought me to this wonderful site. Now I suspect it again and am using knowledge acquired from this site and learned from that last time what to do. Question 1: I started the...

I get my 12.5% liquid chlorine from Menards, $3.99 a gallon and they have plenty!

I have discovered 2-3 small pinholes in the liner above the water line in one corner of my pool. The liner is 7 years old. Is there a vinyl liner tape (clear or colored) that I can purchase to cover this area and make the liner last another year or 2? Thank you TFP community, dobber

I did scrub and brush everything daily and soaked every pool tool for an hour at mustard shock level. With the TF-100 and the chart, I can now maintain the FC where it should be instead of the "test strip guess" in regards to levels. At age 56, this old dog sure learned some new tricks during...

A big thank you is in order for all the help with my shock process and the eradication of mustard algae. My pool passed the OCLT on Sunday morning. Increased to mustard algae shock for 24 hours and with your help, won the battle. Thank you especially to jblizzle and chem geek for the advice. I...

I took the water level down 8 inches. Adding CYA and salt is easier than getting rid of them. I'll gladly take on that challenge if I could ever kill this algae and pass the OCLT! That is my first and only goal, to eradicate the algae and then take what I've learned in this whole process to...

I must be confused. I am still in the shock process. I was told in previous posts to wait longer or lower my CYA. I am looking for a more effective CYA value to shock my pool and kill algae, specifically mustard algae. My first step is to pass the OCLT. Several above posts reference my CYA as...

I was going by "chem geek's" chart all along in determining my shock FC level.

I do have an Ecomatic ESC 36 SWG

I am in the process of lowering my 16X32 pool. If I take it down 1ft, that would be approx 3800 gallons out of 21000. Think that would be enough to lower my CYA to a good shock value? dobber

The pool store test showed that I went from a CYA of 140 to 90. My TF-100 shows me with a CYA of 70-80 (again, that's me dropping until the black dot is completely gone). I was willing to dump gallons of chlorine in the pool at that CYA level, that's on me. Is it your opinion that given the...

I was able to get home from work before the sun hit the water surface. Now today is hot but cloudy currently. I am at wit's end as to how to solve this mystery. Seems like I've added around 6 gallons a day to maintain the 31-37ppm during the past few days.

Not quite sure what I would be looking for. Both skimmers are clean and have been brushed daily for the past week. Pump basket likewise has been cleared when needed and the I'm willing to do whatever with the sand filter but not sure what you'd like me to look for? Or how exactly to do it. Help...

Edit to the above OCLT- this morning's FC should be 33. My math was bad this morning after working all night. Even worse...

Thoughts please, my pool just flunked the OCLT. I added a gallon of chlorine last night at 8:05 pm. Waited until 8:45pm to test FC = 43. Just did the test and FC = 37. My CC is running .5 since yesterday and was still .5 this morning. It has been a week, the water is spotless, I've maintained...

Day 5 of the shock process, planning on the OCLT tonight. I work 3rd shift and cannot make it home before the sun hits the pool. If I have my in-laws collect a sample for me to test an hour or 2 later, would that be OK? The pool could use an inch or two of water, hold off until after the test...

Day 3 of the shock process... Just missed on the OCLT this morning: FC dropped 2ppm, CC was not quite .5 (1 drop didn't quite do it). Went to the pool store to purchase liquid chlorine and took water sample with me to compare. Was surprised at the difference her computer spit out compared to...

Looking for some feedback after 2 days of shock process please. I have maintained an average FC of 39 for the past 2 days. The reason I ran high was so the level would never drop below the 27-30 the chart recommends for a cya of 70-80. I have gone through 30 of the 40 gallons of 12.5% liquid...

Sir, My first attempt at the shock process had me falling below the recommended level too many times in between my testing. I run a little high this time to make sure that it never falls below the 27-30 range that the chart suggests. If you feel that I can back off on the level of FC, I will...

Working on round 2 and looking for some feedback please... Started the shock process again on Saturday 6/15 at 3:30pm. FC 0, CYA 70, PH 70, TA 170. Purchased 40 gallons of liquid chlorine (12.5%) and proceeded to shock FC level to 44. I have monitored the pool every 2 hours and maintained a...

Thank you both for the advice. When I get home this mornng, I will test the FC level. I think I will lower/raise the pool water to keep working that CYA level down, then buy a tanker load (just kidding) of liquid chlorine and attack! dobber