How to Empty Your Pool: A Step-by-Step Guide
Emptying your pool may be necessary for various reasons, including maintenance, repairs, or seasonal closing. However, it’s important to do it safely and effectively to avoid damaging your pool structure. Here’s a comprehensive guide on how to empty your pool properly.
Draining a fiberglass pool can be straightforward if you know the right methods based on your filter type. Here’s a comprehensive guide to help you through the process.
Sand Filter Method
Start by acquiring a backwash hose from a local pool supply store, such as Leslie’s or Adcock. Securely attach the hose to your sand filter to begin the draining process.
Diatomaceous Earth (DE) Filter Method
Alternatively, if your pool uses a DE filter, you’ll need a sump pump (ideally 2 inches). Make sure to direct the discharge hose away from your property and your neighbors’ yards. Keep an eye on the pump and avoid running it dry, as this can lead to damage.
Important Considerations
Even small pools contain around 8,000 gallons of treated water, so it’s crucial to choose a proper disposal site. Check with your local Township for any specific regulations regarding pool water discharge before proceeding.
Understanding Relief Valves
Fiberglass pools equipped with standard bottom drains have relief valves, while wall-mounted drains do not.
Empty the Pool
Once drained, use a shop vac to eliminate the remaining 6 inches of water at the bottom drain.
Access the Bottom Drain
Unscrew and lift the bottom drain cover. Use the shop vac again to clear any water trapped beneath it.
Types of Relief Valves
- Manual Valve: After draining, inspect for a manual relief valve, identifiable by a "lug" nut that can be removed with a ratchet wrench. Remove the valve and set it aside.
- Hydrostatic Valve: Typically hidden in a pipe adjacent to the drain line leading to the pump, these valves are effective in new pools. To access it, gently tap the valve with a screwdriver handle to release it.
- Set Up for Groundwater Removal: Insert a pipe (3 to 5 inches long) into the valve and run a hose through it to keep it elevated while you work. Position the hose over the coping and connect a sump pump to extract groundwater, which poses no chemical concerns. Ensure the discharge flows to a suitable drainage area away from neighboring properties.
Utilizing a Stand Pipe
Many fiberglass pools have a “stand-pipe” installed during construction to manage water issues. If you have one, simply remove the cap, insert a long hose, and connect it to a utility pump to drain any underground water.
Often, a similar PVC pipe may be found emerging from the ground near the pump and filter. This pipe leads to a gravel-filled pit beneath the pool, serving the same purpose as a stand pipe.
Considering Well Points
If your pool is situated in a coastal or low-lying area, you might need to think about installing well points as a last resort. This should only be done by a qualified professional, as some pools may require well points on one side, while others may need them on all sides based on water table conditions.
Final Thoughts
By following these steps, you can effectively and safely drain your fiberglass swimming pool while adhering to local regulations and ensuring the integrity of your pool structure. Always prioritize safety and monitor the draining process closely!