Use the backwash to water grass or any area on your property that will allow water to percolate into the ground. Backwash pools directly into the private sewer cleanout on your property instead of into the storm gutter.
* Can i discharge the backwash water onto my lawn, will it harm the grass / plants? The DE doesn't harm the grass or plants, excessive chlorine or saltwater may. Alternatively you could backwash to a sewer outlet or clean-out.
It is not recommended to drain a swimming pool through the backwash valve. While sucking from the main drain and putting the water down the backwash line will work in some scenarios it puts your pool pump at risk of losing prime and running dry.
Backwashing is essentially the process of cleaning the pool filter and needs to be done on a regular basis. More on that later. In order to ensure against residual blowback into the pool, once you've finished backwashing it is highly advisable to rinse the filter.
Using Swimming Pool/Spa Water on Plants:
Backwashing, the cleaning of pool/spa cartridge or sand filters, is part of more regular maintenance. This backwashing water (approximately 75 gallons each rinse), and pool/spa drainage water, may be used to irrigate a variety of salt-tolerant plants.
Flooding Your Grass Is Not A Good Idea
The problem with draining your pool in the yard, if permitted by your local water regulatory laws, is that it will quickly reach its saturation level and increase the risk of flooding your lawn, drowning the roots of your grass, and attracting mosquitoes.
If an individual empties their pool water on their lawn, will it end up killing the turf? In most cases very little to no damage has been seen in these situations. Turf can endure higher chlorine levels than other landscape plants such as trees, shrubs, and ornamentals.
A cheap backwash hose that rolls up will work too. For draining, the drain at the bottom of your pool fits a standard garden hose, which you could take to the front of your property. You may even to decide to leave it up over the winter.
In-ground pools typically have a sanitary sewer drainage inlet near the pool equipment. Pools and spas not plumbed with a sanitary sewer drainage inlet can be drained to a sanitary sewer line plumbed to the home. Consult a licensed plumber or pool professional if you are unsure how to go about draining your pool.
The best way to drain the pool is to empty it directly into the sanitary sewer line outside your home.
Backwashing can take only a few minutes to complete, but for a typical pool, it consumes approximately 200 to 300 gallons of pool water! So, while your filter is losing unwanted dirt and debris—your pool is losing a ton of water. And that's for a single backwash.
All you need is a medium-size water or vacuum pump. 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. Place the outlet hose so the exiting water doesn't flood the area, but drains off away from the pool.
Pool industry experts recommend you drain your pool and refill it every five to seven years. No two pools are alike, so there is no set number at which you must drain your pool.
A: It's a waste, but fresh pool water is not safe for irrigating plants. It's because the chlorine in pool water is very toxic to plants. If the chlorine level is low enough, it's possible to use it.
If you plan on using pool water to irrigate your trees, don't add any more chlorine to your pool. After four or five days, test the water. When its chlorine level dips below 0.5 parts per million, the water is safe for most trees. (You should follow this same procedure before emptying the pool, too.)
A: Other salt water pool owners report being able to use the water on garden plants with no harm. According to one source, salt water pools have a salt content between 2500 and 4000 parts per million.
The 'Rinse' setting should be used after backwashing and again run just for a minute or two. On this setting the water is flowing through the filter in the normal direction but once again is being sent to the waste pipe rather than being returned to the pool.
Turn the lever to RINSE, start the pump and rinse for about 15-30 seconds. Stop the pump and turn the lever to FILTER. This is the normal operating position. Close the drain outlet valve and start the pump.
After the hose fills with water, backwash your sand filter for 2 - 3 minutes, or until water runs clear. Shut off the pump motor and push the T-handle back down into locked position. Turn your pump back on and note the lower pressure.