Filters Q&A | Pool Repair Question

Filters Medium 2-3 hours 665 👍

Pool Filter Balls vs Sand: Complete Replacement Guide

Noticed my pool filter isn't performing like it used to — can't afford professional service right now, so is switching from sand to filter balls a DIY job under $100? The pool store mentioned they might work better than traditional sand, but I want to make sure before I make the switch.

Are filter balls actually a good replacement for sand in my filter system? I'm curious about things like how well they filter compared to sand, if they're easier to work with, and whether the maintenance routine changes at all. Any guidance would be really helpful!…more

Filters Medium 4-6 hours 630 👍

Can You Reuse Pool Filter Sand? Cleaning vs Replacement

Halfway through another messy backwashing session with my gunky 3-year-old sand filter, I'm trying to decide between cleaning it again or just replacing the sand entirely. The sand looks pretty gunky when I backwash, but replacement sand isn't cheap. I've heard some people say you can rinse it thoroughly and reuse it, while others insist fresh sand is the only way to go. What's the real deal here? I don't mind doing the work myself if it'll save some money, but I also don't want to compromise my water quality.…more

Filters Medium 30 minutes 371 👍

How Long to Run Pool Filter Daily - Complete Guide

Every pool season I feel like an idiot asking this, but I genuinely have no idea how many hours my filter should actually be running daily. My kids swim almost every day during summer, and I want to make sure the water stays clean and safe for them. I've heard different opinions - some neighbors say they run theirs 24/7, while others only run it a few hours.

I'm worried about under-filtering and having bacteria or algae grow, but I also don't want to waste electricity if it's not necessary. Our pool gets heavy use with the kids and their friends, plus we've had some really hot weather lately. What's the right balance for daily filter runtime to keep the water properly clean?…more

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Filters Medium 45 minutes 323 👍

Can I Clean Pool Filter With Bleach? Safe Methods Explained

Somewhere in my garage looking at this disgusting pool filter with brown sludge and nasty buildup caked all over the pleats, wondering if bleach is safe. Is this actually safe to do?

I have what I think is a cartridge filter (it's the white pleated kind), and I'm worried about damaging it or my pool equipment if I use the wrong cleaning method. The pool store told me about expensive filter cleaners, but I'm wondering if regular bleach from the grocery store would work just as well. Should I dilute it somehow, and are there any types of filters I should avoid using bleach on?…more

Filters Medium 4-6 hours 313 👍

Can You Shock Pool Without Running Filter? Safe Method

Spent years shocking my old above-ground pool without running the filter and it worked perfectly, but now I'm questioning if it's actually safe for this new setup. I need to shock my pool but I'm wondering if I absolutely have to have the filter system running while I do it? The pool store mentioned something about circulation being important, but they weren't super clear about whether that meant the filter specifically or just water movement in general.

I'm trying to figure out if there's a safe way to shock the pool even if my filter isn't running - maybe by brushing or using the return jets? Any guidance would be really appreciated since I don't want to mess this up!…more

Filters Medium 2-3 hours over multiple days 298 👍

Can You Use Pool Filter Sand in Your Garden? Complete Guide

During this morning's pool filter sand swap, I spotted this massive pile of perfectly good sand that I'm about to dump in the trash. The pool store told me it's just silica sand, but I'm worried about chemicals and chlorine that might still be in it from filtering pool water.

I've heard that sand can help with drainage in heavy clay soil, which I definitely have in my backyard. But I want to make sure I won't harm my plants or vegetables if I use the old filter sand. Do I need to clean it first or test it somehow? Any advice from experienced pool owners would be really helpful!…more

Filters Medium 2-3 hours for treatment process 273 👍

Can Pool Filter Sand Be Used in Garden? Complete Guide

I got stuck with 200 pounds of nasty used pool filter sand that the previous owner left behind when I moved in. Been in my filter for 3 years. Wondering if I can dump this in my vegetable garden or if the chlorine and other pool chemicals make it unsafe for plants. Anyone know if there's a way to clean it first or should I just toss it?…more

Filters Medium 45 minutes 271 👍

How Long Do Pool DE Filters Last? Complete Lifespan Guide

Pulled the cover off my DE filter system today and got hit with this awful musty, stagnant smell after 18 months of running it on my 20,000-gallon pool. I've been adding fresh DE powder every few weeks after backwashing, but I'm not sure how long the actual filter grids are supposed to last before they need to be completely replaced.

Lately I've noticed that my filter cycles seem to be getting shorter - I'm having to backwash more frequently than I used to, and the water clarity isn't quite as crystal clear as it was when the system was newer. My pool gets moderate use with about 4-6 swimmers regularly, and I keep my chlorine around 2-3 ppm and pH at 7.4. Are these signs that my grids are wearing out, or is this normal aging? What's the typical lifespan I should expect from DE filter components?…more

Filters Easy 30 minutes 266 👍

How Long Do Pool Filters Last? Replacement Guide & Signs

After following my pool filter manual religiously for years, I'm baffled why it says replace every 6 months when mine still looks spotless after twelve. Have cartridge now but considering switching. How long do different filter types actually last before they need replacing? What are the signs it's time for a new one?…more

Filters Medium 15 minutes 249 👍

How Pool Sand Filters Work: Complete Diagram & Process

New pool owner trying to understand how my sand filter actually cleans the water. Watched a couple YouTube videos but they all skip over the important details. The pool store just says "backwash when pressure goes up" but I want to actually understand what's happening inside this tank.…more

Filters Easy 30 minutes 238 👍

Can You Pressure Wash Pool Filters? Safe Cleaning Guide

Between my pool party this Saturday and getting completely conflicting advice on pressure washing cartridge versus DE filters, I'm running out of time to figure this out.

My current setup includes cartridge filters, but I'm considering switching to either DE or sand filtration depending on cleaning requirements.

What are the specific limitations and recommended procedures for pressure washing each filter type? I want to ensure I'm using appropriate PSI settings and techniques to avoid damaging the filtration media while achieving optimal cleaning results.…more

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Filters Easy 10 minutes 237 👍

How to Backwash Pool Filter - Complete Step-by-Step Guide

Apparently my pool filter started shooting dirty water back into the pool during what I thought was a normal backwash cycle yesterday.

The pool store told me I need to backwash my filter regularly, but I'm honestly not sure what that means or how to do it properly.

I see there's a multiport valve on my filter system with different settings like BACKWASH, RINSE, and FILTER, but I don't want to mess anything up by doing it wrong. Can someone walk me through the exact steps? Like do I turn the pump off first, and how long am I supposed to run it in each mode?…more

Filters Easy 20-30 minutes 232 👍

Do Sand Pool Filters Need Cleaning? Complete Maintenance Guide

Apparently the manual says to backwash my sand filter every few weeks, but that doesn't match what the pool store is telling me about maintenance. I have a sand filter system and the pool store told me I'd need to clean it sometimes, but they didn't really explain how often or what that involves.

I've been running the filter daily and the water looks pretty good so far, but I want to make sure I'm not missing something important. Should I be doing something regularly to keep the sand filter working properly? And how long does the sand itself typically last before it needs to be replaced?…more

Filters Easy 15 minutes 231 👍

How to Tell If Your Pool Cartridge Filter Is Bad - 7 Signs

Nobody can explain why my test strips show perfect chemistry levels but my pool water looks like chocolate milk. Filter cartridge looks grayish and the pleats seem a bit beat up. Tried cleaning it but water quality isn't improving.

How do I know when it's actually time to replace the cartridge versus just needing a better cleaning? What should I be looking for?…more

Filters Medium 45 minutes 230 👍

Can a Pool Sand Filter Be Too Big? Sizing Problems Explained

During our weekly pool maintenance routine, my husband casually mentioned that our 15,000 gallon inground pool's water has looked consistently cloudy despite my best filtration efforts, and now I can't stop obsessing over what's wrong. The water isn't cloudy exactly, but it lacks that crystal-clear sparkle and seems to have a slight haze that won't go away. My chemical levels are all in range - chlorine at 2.5 ppm, pH 7.4, alkalinity 110 ppm, and I've shocked multiple times with no improvement.

I recently upgraded to a larger 24-inch sand filter thinking bigger would be better, but I'm starting to wonder if I made a mistake. My pump runs at about 45 GPM, and I've noticed that when I backwash, the water doesn't seem to flow very forcefully compared to my old smaller filter. Could the filter actually be too large for my system? I've heard that oversized filters can cause problems, but I'm not sure how to tell if that's what's happening here.…more

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