Results for "backwash"

Filters Easy 10 minutes 323 👍 0

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

Read answer

Filters Easy 5 minutes 328 👍 0

How Long to Backwash Pool Sand Filter: Complete Guide

Since it's 11 PM and my sand filter pressure just spiked to dangerous levels — need to backwash this thing before my pump burns out overnight. Right now I'm dealing with my sand filter - the pressure has gone up quite a bit from when I first cleaned it, and I know it's time to backwash.

But here's my question: how long should I actually run the backwash cycle? I don't want to waste a ton of water (my utility bills are already high enough), but I also want to make sure I'm doing it properly. Is there a specific time I should aim for, or some other way to tell when it's done? I'd rather figure this out myself than pay someone else to do basic maintenance.…more

Read answer

Filters Easy 10 minutes 244 👍 0

Do I Need to Backwash My Pool Filter? Complete Guide

Our pool filter pressure started as slightly higher gauge readings last month but now it's climbing so dangerously high I'm wondering what specific indicators tell me when to backwash.

What are the key signs I should monitor to determine when backwashing is necessary? Are there different procedures for different types of filters, or does the same process apply across all filtration systems?…more

Read answer

Editor's Pick

Dolphin Nautilus CC Plus Robotic Pool Vacuum (2026)

Wall-climbing scrubber brush and Wi-Fi control — ideal for in-ground pools up to 40 ft. View on Amazon →

Sponsored

Filters Easy 30 minutes 287 👍 1

How to Use a Pool Sand Filter: Complete Step-by-Step Guide

The pool sand filter that worked fine for years started giving me cloudy water last month but now it's completely dead and those expensive pool store fixes aren't working.

Can someone just give me the straight facts on how to actually operate my sand filter? I want to know the basic daily routine, when I should backwash, and how to tell if it's working properly. I'm looking for simple, practical steps I can handle myself without breaking the bank on unnecessary add-ons.…more

Read answer

Maintenance Easy 45 minutes 198 👍 1

Can You Vacuum Pool on Backwash? Proper Filter Settings

Already tried everything but my pool filter clogs every time I vacuum, the water won't clear up, AND I can't figure out the right filter setting.
Should I have it on backwash while I vacuum, or use a different setting? Don't want to mess anything up.…more

Read answer

Filters Easy 30-45 minutes 577 👍 1

Do I Need to Backwash a Cartridge Filter? Complete Guide

Around $150 is what my pool store quoted to service my cartridge filter and I'm wondering if I can just backwash it myself like other filters. Is this possible or do I need to clean it differently?…more

Read answer

Filters Medium 45 minutes 555 👍 0

Do DE Pool Filters Need Backwash? Complete Guide + When

Around six months ago I moved into a rental with a DE pool filter that I've never dealt with before and I'm completely lost on whether it needs backwashing. My DE pool filter's pressure gauge has shot up from the normal 12 PSI to about 22 PSI over the past month, and I'm wondering if this means I need to backwash the thing. I've been putting off maintenance because honestly, I'm not even sure how often these DE filters are supposed to be backwashed.

The water clarity has been decent but the high pressure is making me nervous that I'm about to have a bigger problem on my hands. How often should I actually be backwashing this filter, and is there anything special I need to do after backwashing a DE system? I really don't want to mess this up and create an even bigger headache.…more

Read answer

Filters Medium 45 minutes 339 👍 1

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

Read answer

Filters Medium 1–2 hours research and planning; installation time varies 34 👍 1

Cartridge vs Sand Filter: Is Switching Worth It?

Three summers of hauling cartridges out of my filter housing, blasting them with a hose, and letting them dry in the backyard — and I'm at my breaking point. The funny thing is it only really feels unbearable when it's above 85°F outside, because that's when the algae pressure picks up and I'm pulling the cartridges every couple of weeks instead of once a month. During the cooler shoulder season the system works fine and I barely think about it.

My neighbor runs a sand filter and swears he just backwashes it every few weeks and forgets about it. Replacement cartridges for my setup run me somewhere around $100–$150 a pop, and they don't last as long as I'd like. I'm seriously considering making the jump to sand — but I want to know what that conversion actually costs, whether I'll regret the water clarity trade-off, and whether the long-term math actually works out in my favor.

Is converting from cartridge to sand a genuinely smart move for a medium-sized in-ground pool, or am I just reacting to a hot-weather frustration? What are the real trade-offs I should be thinking through before I commit?…more

Read answer

Filters Medium 3-4 hours 775 👍 0

When to Change Sand in Pool Filter: Complete Guide 2026

Halfway through the pool season and my sand filter is already eating through replacement sand way faster than it should. The filter has been in operation for approximately two years, and I want to determine the optimal replacement interval for the sand media to ensure consistent filtration performance.

Specifically, I'm looking for technical guidance on the expected service life of pool filter sand, what operational indicators suggest replacement is necessary, and how deteriorated sand affects overall system efficiency. My current setup maintains proper chemical balance, but I want to stay ahead of any filtration issues that could compromise water quality.…more

Read answer

Filters Easy 30 minutes 461 👍 1

Do I Need to Wash Pool Filter Sand? Complete Guide

After years of perfect pool maintenance, my filter sand suddenly turns cloudy and clogs up every time the temperature hits 85 degrees outside. The new sand I bought looks pretty dusty and I'm wondering if I need to clean it first before putting it in the filter system.

I'm really concerned about water quality and don't want to introduce anything harmful or make the water cloudy for the kids. Should I be washing this sand before installation, or is it ready to go straight from the bag? What's the safest approach here?…more

Read answer

Product Ranking 8 compared

Best Robotic Pool Cleaners

4.6 (28,500 reviews)

Above Ground Easy 30 minutes 293 👍 0

How Long Above Ground Pool Filters Last - Complete Guide

Got called out by my husband for never replacing our pool filter in three years and now I'm wondering if that's why our water keeps getting cloudy. Got an above ground pool and want to know how long each type lasts before I'm throwing money away.

Specifically looking for info on cartridge, sand, and DE filters. When do you actually need to replace vs just clean? Don't want to replace too early but also don't want nasty water.…more

Read answer

Filters Easy 20-30 minutes 579 👍 0

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

Read answer

Filters Medium 2-3 hours 1,299 👍 8

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

Read answer

Maintenance Medium 15-20 minutes to read, 30-60 minutes to complete weekly tasks 294 👍 1

Weekly Pool Maintenance Checklist: Complete Guide

Weekly pool maintenance involves testing and balancing water chemistry (pH 7.4-7.6, proper chlorine levels), cleaning skimmers and equipment, brushing walls, and vacuuming debris. Consistent weekly care prevents expensive repairs and keeps your pool safe for swimming year-round.…more

Read answer

Loading more Q&A...

You've seen all 87 Q&A articles!