A guide on cleaning a sand filter with muraitic acid

Cleaning a sand filter with muriatic acid solution is a more straightforward procedure than cleaning a DE or Cartridge filter, but this doesn’t mean it is that easy. Be that as it may, with a lot of information and a little experience to guide you through, you will be sure you will get it done the right way.

Replacing a sand filter swimming pool pump and cleaning requires following some simple steps with a few differences so the following information will help you.

Things You Will Need

  • Muriatic acid
  • Wrench
  • Work gloves
  • Screwdriver
  • Garden hose
  • Small plastic container
  • A large bucket
  • Replacement sand or sand alternative

Detailed instructions

Note the accompanying things:

  • Cleaning a pool sand filter won’t take over an hour. Notwithstanding, if you are totally expelling and/or replacing the sand in the filter, it may take longer.
  • You should wash and backwash the filter substantially more consistently than you will need to add sand to it – you should clean the filter month to month to keep it working appropriately while you will just need to replace the sand once in a few years.
  • Cleaning and replacing the sand filter may look the same in a way but they are actually different tasks.

Here are the steps of how to clean a sand filter with muriatic acid solution.

  1. Turn Off the Filter and Pump
  2. Brace the Backwash Hose
  3. Turn the Backwash Regulator to Backwash Position
  4. Turn the Pump and Filter on
  5. Turn the Backwash Handle to its Normal Position
  6. Open the Air Relieve Regulator

You can stop here if basically want you want to do is backwash your pool sand filter system. In the event that you need to clean the system with Mauriac acid solution, then you should proceed with the following steps.

  1. Turn Off the Pump and Filter
  2. Remove the Manifold
  3. Evacuate the Sand
  4. Wash the Filter With Muriatic Acid
  5. Put Back the Sand

You will be ready to go after the sand filter tank has backwashed. Let the system cycle for at least 30 minutes before you jump into your swimming pool again.

Note that if you follow the above steps properly and diligently, you will have your sand filter cleaned and functional in no time. The best part is that you do not need to hire the services of a professional to get it done.  It is a straightforward procedure and you can get this done all by yourself.


Congrats! You have effectively cleaned your sand pool filter with muriatic acid and in the process, you’ve learned how to change the sand. Dirt is disposed of from a sand filter by reversing the water stream or backwashing. This procedure ought to be done when the pressure gauge reads a 7-10 lb increment over the customary working weight. If that happens to be the case, then you have to follow the steps listed above to get the procedure properly done.