Shattered laterals can be one reason your pool filter is blowing out sand. A second reason could be due to a broken seal. The most common seal to break is the O-ring. If your pool filter is still blowing out sand after fixing the laterals and seals, it’s likely time for a new filter altogether.

Why is sand coming out of my pool return?

The reason why you’re finding sand in your pool is that the sand filter media of your pool filter is somehow coming back through your pool’s return lines. And that’s a problem. It means that some section of your pool filter is broken and leaking sand out.

Is it normal for sand to come out when backwashing?

Swimming pool filter problem



After filling a sand filter it is normal for the filter to expel excess sand during backwashing for a few times . If this continues you have a problem.

Why is dirt coming out of my pool jets?

if dirt is escaping back into the pool, it could be because the filter is dirty and clogged, which means it needs to be backwashed. When the pressure gauge rises eight to ten pounds per square inch (PSI) above it respective normal operating range, backwashing is necessary.

Why does sand come out of my filter when I backwash?

Your sand filter is designed to operate effectively with a certain level of sand in it. When the sand level in the filter housing or sand tank is too high, then you may notice sand coming out of the backwash lines when you backwash or use the rinse function.

Why is there sand coming out of my water?

It’s possible that what you see as “sand” in your water is actually particulates from corroded fixtures in your home. Over time, the glass lining of tank water heaters can break down into particulates resembling sand. The anode rod inside a water heater can also corrode and release sediment into your water.

How is sand getting in my pool?

The most likely cause of sand at the bottom of your pool is that it simply fell in the water. This can happen even if you don’t have sand around your pool. Wind can pick up sand particles and carry it long distances. So the wind may have dropped some sand in your pool on the way through the neighborhood.

Why is my sand filter pushing out sand?

Your pump may be too large or the sand level too high in the filter. When the filter is backwashing the water flow can cause the sand to rise high enough and overflow into the standpipe, which will allow the sand back into the pool.

How do I know if my sand filter is leaking sand?


Quote from video: One way to tell if your sand filter has a leak with the lateral from the filter is to put some diatomaceous earth in the filter. So go ahead and purchase a small bag of be diatomaceous.

What happens if you backwash too much?

Some problems that can arise from backwashing your sand pool filter too much are: Loss of water – 500+ litres of water can be lost in each backwashing cycle. Loss of silica sand resulting in increased consumption and replacement costs.

Why does dirt come out after I backwash my pool?

If you find dirt or sand escaping the filter after backwashing, you may have a broken or cracked lateral. To determine if one of your laterals is compromised, you will have to open the tank and examine the tubes yourself. In some instances, we have also seen that there could also be an issue within the valve itself.

How do I get rid of fine sediment in my pool?

Rely on Your Pump and Filter



A pool pump and filter work together to remove fine debris from the pool water – this is what you should be relying on to keep your pool clean. This equipment does a good job of making sure that the water is filtered through and that fine particles are removed.

Why do I keep getting dirt in my pool?

While larger debris like leaves get sucked up and caught in your skimmer basket, dirt is too tiny to be caught by any netted filters. Instead, it usually falls to the bottom of your pool, and doesn’t get circulated through your pool system. That’s why you might see dirt piling up in the bottom of your pool.

How do you keep the powder from coming back in pool?

Quote from video: One of the most common causes for getting de powder in your pool is adding. Too much de powder. Check your owner's manual for the manufacturers recommended amount of de if. This is a new installation.

How do I know if my pool return line is clogged?

Diagnosing Clogged pool lines



Your pool pump is pulsing or surging – if you’ve ruled out air leaks and your pool pump is pulsing or surging then you may have a clogged pipe.

How do I know if my pool return line is leaking?

Common Signs Of A Leaking Pool

  1. Water Level Changes. Dropping water level is the clearest sign a pool is leaking, but it’s important to determine if the water loss is due to evaporation or a leak.
  2. Cracks or Falling Tile.
  3. Wet Spots in Yard.
  4. High Water Bills.
  5. Water Under Equipment.
  6. Air or Dirt Blown Into Pool.
  7. Algae Growth.



How do I know if my sand filter is leaking sand?

Quote from video: One way to tell if your sand filter has a leak with the lateral from the filter is to put some diatomaceous earth in the filter. So go ahead and purchase a small bag of be diatomaceous.

Why is my sand filter pushing out sand?

Your pump may be too large or the sand level too high in the filter. When the filter is backwashing the water flow can cause the sand to rise high enough and overflow into the standpipe, which will allow the sand back into the pool.

How long should you backwash a sand filter?

After the hose fills with water, backwash your sand filter for 2 – 3 minutes or until water runs clear. Shut off pump motor and push T-handle back down into locked position.