Does a pool need a bottom drain

Main drains are not required in an inground swimming pool, however, they are strongly recommended and can be extremely useful in some circumstances. … This is useful when replacing your pool liner. Main drains are also helpful in the filtering of water and dirt from the bottom of the pool.

Why is there a drain at the bottom of my pool?

Swimming pool main drains are one of two mechanisms used in many pools to circulate and filter their water, the other being skimmers. … A swimming pool main drain uses suction to pull pool water through it. Heavy particulate matter that sinks to a pool’s bottom is often sucked away through a main drain.

Do Above ground pools have bottom drains?

These openings are where the pump and filter hook up to the pool and they are both located high up and right next to each other. … There are three ways an above ground pool can get better circulation. You could get and use an automatic pool cleaner, add a return line or two, or you could have a center bottom main drain.

Do all pools have a drain?

Most pools have two main drains, but a small pool may have only one. The drains are positioned at the pool’s deepest point.

Do in ground pools have drains?

In a safe pool, there are always multiple main drains as well as several skimmer drains, so if somebody or something blocks one drain, the pumping system will pull water from one of the other drains. … The vacuum ports may have their own pumping system, but in most pools they are driven by the main pump.

Should I Use main drain or skimmer?

Skimmer Vs. Drain. If the pool receives a lot of leaves and other debris, more suction may be required at the skimmer than the main drain to adequately strain debris floating on the surface. Conversely, if dirt on the bottom of the pool is the principal contaminant, more suction is required at the main drain.

Should pool main drain be open or closed?

For proper water circulation, it is best to position the flap so that it is about 2/3 closed. This will allow for more flow through the main drain than through the skimmer, which will promote a “bottom-to-top” circulation throughout the pool.

How do you install a main drain in a pool?

To install the main drains into a vinyl pool, first remove the cover and face plate off of each main drain pot, and tape over the opening, covering the faceplate screw holes with duct tape. There is a 2″ plug included with each main drain you will use that to plug the bottom hole in each main drain.

How can I drain my pool without flooding the yard?

1. Unroll the pump’s intake hose so that it reaches the center of the pool (or as close to it as possible), and submerge it in the pool.
2. Place the outlet hose so the exiting water doesn’t flood the area, but drains off away from the pool.
3. Dry your hands thoroughly.

How many returns should a pool have?

While many professionals install two returns, some prefer more as a general rule. Builder Guy Wood, for instance, often will place four returns in pools that measure 250 to 600 square feet. A vessel of 600 to 800 square feet will generally have six returns to start.

Article first time published on

How should my pool valves be set?

A normal pool valve setting would have the skimmer valve(s) fully open, main drain half-open and spa drain fully closed. To operate a suction pool cleaner or manually vacuum the pool, you can close other skimmers, or close the main drain, to obtain more suction through the skimmer you are using.

Should main drain in pool have suction?

The main drain for a pool is a suction port that should be located at the deepest point on the pool floor. A main drain is responsible for aiding in the circulation and filtration of the pool water. Having a properly working and dedicated main drain line can also allow you to fully drain your pool if necessary.

Why are there 2 holes in the bottom of a pool skimmer?

The second hole in the skimmer is connected to a pipe called an equalizer. … It prevents the pump from taking in air if the pool’s water level dips below the skimmer opening. If the pool water is low the pump pulls water from the equalizer line so the pump doesn’t run dry.

How many skimmers should a pool have?

How many skimmers do I need? The Association of Pool and Spa Professionals (APSP) advises that there should be a minimum of one skimmer per 400 sq. ft. of pool surface area.

How often should you drain your above ground pool?

Even with proper and regular pool maintenance, it’s often necessary to drain your pool — completely or partially — every 3-5 years. Draining your pool often isn’t necessary, especially if you’re following a proper and regular maintenance program.

Should I drain my above ground pool?

Important: Never completely drain an above ground pool. This can cause your pool to collapse. If your pool is plumbed with detachable, flexible hoses, remove them and store for the winter. Remove all drain plugs from the pump, filter tank, and any other pool equipment.

Should I drain my pool for the winter?

Close the pool for winter – but don’t drain it. In winter, the water in your pool is still your friend. Especially when properly winterized, it helps to protect the pool liner, keep it clean and prevent unnecessary damage from debris, harsh weather and other factors.

Where is the pool overflow drain?

Slot Drain Systems offer a pool overflow drainage system that is installed around the rim of the pool. This drainage system helps manage and prevent water overflows in and around pools.

How does inground pool overflow work?

The pool will only overflow by the amount of rain in excess of the amount of rain needed to fill the pool to the top. So if your pool is the normal 3” below the top, the rain would need to exceed 3” before any additional rain would be available to overflow onto the deck.

Why are my pool jets bubbling?

What are the most common reasons for pool air bubbles? … The pool water level is too low. The strainer pot lid isn’t on tight or its O-ring is loose/absent/compromised. The union between the valves and the pump isn’t tight or its O-ring is loose/absent/compromised.

What direction should pool returns face?

To give your swimming pool the best filtration you should point your return jet away from your skimmer and downward to get the best circulation and filtration. The top few inches of your pool is usually the dirtiest and for your pump to clean properly it is best to keep the water calm on the top of the water.

Does pool pump use a lot of electricity?

Outside of the air conditioner, the pool pump is the largest electricity consumer in the average pool-containing home. According to the study, at the national average of 11.8 cents per KWh, a pool pump alone can add as much as $300 a year to an electric bill.