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Hi everyone. I’m season 6 with my pool and had a question about cleaning the filter. I need to confess that I have never done a deep clean of the filter sand. My pool looks great and I run it year round so I have not really felt that it “needs” to be deep cleaned. So my question is - “Do I...

Hello everyone, I have a 13,000 gallon pool with a Hayward Aqua Plus SWG chorlination system and a t-9 cell. I'm on year 5-6 of the salt cell so I image I will be replacing soon. Questions: 1.) Some on this forum have suggested upgrading to a T15 cell and that the T9 is a bit undersized for...

hello. I have a Hayward T-9 SWG that seems to still be working fine. However, I am entering year 6 of use. I know there are lots of factors that determine cell life but if it’s working ok, any need to replace just based on age? What should I look for if it starts to show signs of...

Hello all, I live in Raleigh, NC. We rarely get extended periods with temperatures below 32 degrees. I have freeze protection running on my inground pool, and it has worked great the last five winters leaving my pool open year-round. My question is about a waterfall that is off the main...

I have few very small brown stains on my fiberglass pool. (0.5-1 inches or so in diameter). I'm thinking iron stains. Chlorine level is bit high for the last few days so they do not seem to be organic (FC=7, CYA 60). I'm planning on trying magic eraser on the spots first (saw a post...

Got an algae bloom and had some Cal-hypo granulated shock sitting around. I dissolved thouroughly in hot water and added to the pool. My CH is around 230 and I have a fiberglass pool. not too worried about the calicum going up much. My plan is to continue the SLAM with liquid chlorine but...

Going into year 4 with my pool. Sand Filter. Living in NC I keep the pool open year round. We get lots of pine pollen in the spring but the filter seems to do fine filtering out. Question about what maintainance , if any, is needed on the sand filter. I'm reading here on TFP that changing...

Anyone from Raleigh, NC area? A friend has a concrete pool that needs some general concrete patching/maintenance- anyone have a pool company they like that specializes in concrete?

Hello there, I keep my pool open in the winter and note again that my CSI is going very low. I have a fiberglass pool and not really sure if CSI really means much in the winter with fiberglass. I could certainly increase the Ph to 8 which others have suggested and increase the calcium but is...

Got a mysterious problem with concrete staining. Hundreds of small white spots all over concrete- popped up one day. Tried power washing it but did not resolve. Doesn’t look like typical bird poop but that’s my best guess. But hundreds of small spots. Almost looks like white paint and only...

I've had a mustard algae outbreak. I did a regular SLAM about 6 weeks ago and everything went great. When chlorine level drifted down after 2 weeks started noticing algae again. So 2 weeks ago did another SLAM but this time raised the chlorine level to mustard algae levels for 24 hours...

Question about some material I picked up with my vaccuum. So I did SLAM 2 weeks ago - all went well. Then this week started noticing brownish "dust" at the bottom of the pool with some cloudiness. I did an OCLT and it was borderline with 0.8 chlorine loss. So I just decided to SLAM and then...

Hi everyone, Doing my first SLAM - everything looks good - pool already blue after initial shock level. Water mildly cloudy but clearing. Thinking probably have a few hours more to go and still need to do the OCLT tonight. Problem - I forgot (and did not realize) to lower the Ph before...

Have had my pool for 3 years and have been meticulous on chemistry, After the recent hurricane and subsequent rains - pool got cloudy/blue green and finally started seeing algae along the walls of the pool - was very disappointed - very OCD about making sure chemisty has always been good and FC...

Just bought the pool blaster catfish li battery powered vacuum. It says it fits a standard sized pool pole - I have two that are the standard sized pole (1 1/4 inch diameter). The vacuum is just slightly too big to fit the pole. Anyone else have any experience with this. I can make it work...

Question about the PoolMath app and Diclor. The app only lists “Diclor”. But what percentage does this refer to. Diclor comes in variable percentages especially for spa shock. If it applies to 90% Diclor in the app does that mean if i am using 33% or 53% does that mean the expected rise in...

Just purchased a new Marquis Vector series 320 gallon spa. I've been maintaining a pool here on TFP for the last 3 years. Now ready to dive into hot tub maintainence.. Water is balanced at this time. Using an inline chlorination system for now (seems at though they dont get very good...

Today we had a large amount of rain. The pool water level got pretty high, so I decided to drain to a more acceptable level since more rain expected later this evening. I typically just set my filter to waste and turn the pump on 100%, lay out the backwash hose and just let it rip. As I...

I think I know the answer to this question but.... I leave my pool open during the winter and keep my chemicals balanced weekly. I have a fiberglass shell inground pool. It is very difficult to keep the CSI greater than -0.5 in the winter due to low water temps. Any concern about this for a...

Happy holidays everyone. Now that winter is here and too cold to use the robot, looking for recommendations for a new vaccuum head for my fiberglass pool that attaches to the skimmer suction. Any thoughts about the ones with weights and wheels versus the ones with just bristles ? Looking on...

Hi everyone, Second year with pool. This summer, as most of us know, has been a hot one. Here in NC we have had over 3 weeks with 90 plus degree days. My pool temp has been 88-90 degrees. Last readings: FC 3.5 Ph 7.6 TA 60 CH 250 CYA 70 Pool looks great - crystal clear Turned my SWG up to...

Sorry, wasn't sure where to post this. So I went on vacation away from my pool. Left the pool with perfect chemistry and balance to my sister in law (no pool knowledge) to just clean out the skimmer balance and keep SWG running at 35% since this has been keeping FC level perfect for the last 2...

I have a K1766 test kit that I bought last year. I tested my salt level a few times and always seemed to run 500-750 (test 2700, SWG 3300) points lower than what my SWG was reading however, the SWG functioned normally and so I did not really think anything of it. My question is: From my...

When doing the DPD drop titration does everyone routinely use 0.2/drop or 0.5/drop. Which is best to use for SLAM

Hi everyone. I’ve had my pool for about a year. Working great. Since the swimming season started last week, I noticed I’ve had to run my SWG more often. Here is my most recent tests FC 1.0 CC 0 Ph 7.24 TA 70 CH 250 CYA 90 (May have overshot this a little) Currently running at 25% 15 hours...

Question about cleaning a SWG. I know it has to be checked every 3 months. However, is it necessary to wash with Muriatc acid if there is no visible scale/debris ? Is a good hose down adequate ? I’ve had my pool about a year, keeping chemistry perfect according to pool math, and have only...

So I’ve been doing well for the last year with my self pool maintenance up until today. Today I went to unscrew my salt cell for inspection and the PVC threader thing on the PVC pipe cracked so now it cannot screw on the salt cell. So I can’t use my filter or salt cell for several days until...

Hi everyone - I live in central NC near Raleigh. I kept my pool open all winter and everything is balanced. Weather is starting to get milder mid 70s and my kids are chomping at the bit to get into the pool. We bought a heat pump to extend our pool season for this purpose. This will be my...

Hi everyone, Great advice on here for new pool owner. I'm keeping my pool uncovered and running through the winter. So far half way through Fall and doing well keeping leaves out, clean, etc. Few questions: 1.) Pool water temp now at 50 degrees F. I turned my SWG off today. Current...

So, I've had my pool for the last 6 months. Fiberglass pool- darker color blue. Began to notice very fine (difficult to take a picture but see below) whitish scratches along the walls of the pool. They do not look like scale (not from pictures I have seen of scale). I went underwater with a...