Results for "check valve"

Leaks Medium 2-4 hours 570 👍 0

Can Pool Leak Through Hydrostatic Valve? Detection & Repair

According to my pool's behavior, the water level started dropping steadily yesterday even though nobody's been swimming, and now I'm wondering if the hydrostatic valve is leaking. The water level drops consistently even when the pool isn't in use, and I've already ruled out obvious surface leaks around the skimmers, returns, and visible plumbing.

From my understanding, hydrostatic valves are designed to prevent the pool shell from floating during high groundwater conditions, but I'm wondering if they can work in reverse - allowing pool water to escape when groundwater levels are low or if the valve mechanism fails. The water loss seems to correlate with our recent dry spell, which has me questioning whether the valve could be stuck open or damaged.

Is it technically feasible for a hydrostatic valve to cause pool water leakage, and if so, what specific failure modes should I be looking for during inspection?…more

Read answer

Equipment Medium 2–3 hours (plus cure time) 1,048 👍 45

Add a Shutoff Valve to Your Pool Waste Line

My pool equipment pad has a waste line that just dumps straight out to the side yard with zero control — no valve, nothing. I found a YouTube tutorial on how to splice in a shutoff valve, grabbed the supplies, and cut into the pipe... and now I've got a bigger mess than before. The dry-fit didn't hold the way the video showed, one of my cuts came out slightly angled, and I'm second-guessing the whole thing before I actually glue anything permanently.

The waste line is 1½-inch PVC coming off the back of my multiport filter valve. It dribbles between backwash cycles because there's nothing shutting it off, and I'd like to fix that properly. I want to understand what type of valve to actually use here, how to prep the pipe ends correctly after a rough cut, and how to solvent-weld everything so it doesn't leak or blow apart under pressure.

Can someone walk me through the real process — choosing the right valve, making clean cuts, dry-fitting, priming and cementing, and how long I need to wait before firing the pump back up? I want to get this right the second time.…more

Read answer

Pump Problems Medium 1–2 hours 16 👍 1

Pool Pump Loses Prime Overnight? Here's the Fix

Found the pump basket completely packed with air again this morning when I went out to check on the pool — same thing that happened yesterday, and the day before that. Once I manually fill the housing with water and get it going, the pump runs beautifully all day with no issues at all. But the second I shut it off for the night and try to fire it back up, it just churns away with a basket full of air and refuses to catch on its own.

This has become a frustrating daily ritual. I have a standard above-ground setup and the pump is maybe three or four years old. Water level in the pool looks fine, and I haven't noticed any obvious drips or wet spots around the equipment pad. I'm not sure if this is a seal issue, something with a valve, or just normal wear and tear at this point.

Is there a way to track down exactly where the air is sneaking in? I'd love to fix this myself if it's something manageable, or at least know what I'm dealing with before calling someone out.…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 10 minutes 392 👍 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 Medium 3-4 hours 755 👍 0

How to Change Pool Filter Sand: Complete Step-by-Step Guide

Standing here staring at my pool filter feeling completely clueless—probably a dumb question, but how do you actually change the sand inside this thing?

Can someone walk me through the whole thing? Like do I need to turn off the pump first? How do I get to the old sand? And what are these "laterals" they mentioned - I don't want to damage those. Any step-by-step guidance would be amazing since this is my first time doing any pool maintenance beyond adding chemicals.…more

Read answer

Filters Medium 45 minutes 364 👍 0

Can I Leave Pool Filter Outside for Winter? Storage Guide

This Hayward sand filter is sitting in my backyard and the pool store warned me the housing will crack if I leave it outside this winter. They're saying I absolutely MUST bring my filter inside and store it properly or it'll crack from freezing water. Is this just another upsell, or will my filter actually get damaged if I leave it outside during winter?

I'm in a climate that gets below freezing, and I'm trying to handle as much of the winterization myself as possible. The pool store quoted me $200 just for filter removal and storage! Can I really not just drain it well and leave it in place, or am I risking expensive damage? Looking for honest advice from people who've actually dealt with this.…more

Read answer

Filters Easy 15 minutes 351 👍 1

How to Know If Your Pool Filter Is Dirty: Clear Warning Signs

Around the pool supply store staring at rows of filters with absolutely no idea how to tell if mine actually needs replacing. What should I be looking for to know when my filter is getting too dirty and needs attention?

I've heard something about pressure readings, but honestly I'm not sure what numbers I should be watching for or what other warning signs might tell me it's time to clean or replace the filter media.…more

Read answer

Heaters Medium 2-4 hours 612 👍 0

Do You Need a Pool Heater Bypass? Installation Guide

Before I connect my new pool heater to the system, it's making this weird whistling sound when water flows through and now I'm wondering if a bypass valve would fix it. The manufacturer's documentation mentions bypass considerations, but I need clarity on whether this is mandatory or optional equipment.

Specifically, I'm concerned about maintaining proper flow rates through the heating unit and having the ability to isolate the heater during routine maintenance procedures. What are the technical requirements and operational benefits of incorporating a bypass valve system into the heater plumbing layout?…more

Read answer

Filters Easy 20-30 minutes 865 👍 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 Easy 5 minutes 427 👍 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 45-90 minutes 557 👍 2

Can I Vacuum Pool on Waste? Complete Filter Setting Guide

Halfway through prepping for our pool party this Saturday, I realized I have no clue which filter setting to use when vacuuming all this debris. I've got some pretty heavy debris that's settled on the bottom of my pool after a storm, and I'm worried about clogging up my filter if I vacuum it all up normally.

The guy at the pool store mentioned something about using the "waste" setting when vacuuming, but I didn't really understand what he meant. Does this actually work, and when should I be using waste instead of the regular filter setting? I don't want to mess anything up since I'm still learning all this stuff.…more

Read answer

Product Ranking 8 compared

Best Variable Speed Pool Pumps

4.5 (12,400 reviews)

Heaters Medium 45 minutes 314 👍 1

How Solar Pool Heaters Work: Diagnosis & Troubleshooting

According to what I spotted this morning, my solar heater panels are just sitting there doing absolutely nothing while every "expert" keeps pushing gas systems instead. They keep pushing these pricey gas heaters and telling me solar is "complicated" - probably because there's less markup for them.

I want to understand the actual process of how solar pool heaters function before I make any decisions. Do they really just use the sun's energy somehow? I'm hoping to find a more cost-effective heating solution and maybe even explore some DIY options instead of getting ripped off again.…more

Read answer

Filters Medium 45 minutes 751 👍 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 15 minutes 968 👍 0

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

Read answer

Filters Easy 10 minutes 312 👍 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

Loading more Q&A...

You've seen all 67 Q&A articles!