Multiport valves are installed only if your swimming pool filtration system uses either a sand or Diatomaceous Earth (DE) filter. If your swimming pool filtration system employs a cartridge in the filtration system it would not need a multiport valve as cleaning it as easy as holding it against your garden hose and relieving it of all the debris that has been collected in it.
Each type of swimming pool filter have their inherent advantages and disadvantages so it would not matter much whether you use a cartridge, sand or diatomaceous earth filter. Here we would be looking at how a multi port valve operates and what advantages and disadvantages there are in using one.
A multiport valve would generally have seven settings which could be used to filter your swimming pool and also to clean up the filter when it is clogged with debris that needs to be removed for efficient operation. The seven settings in a multiport valve would be 1) filter, 2) backwash, 3) rinse, 4) waste, 5) close, 6) recirculate and 7) winter. Each of these settings in a multiport valve used in a swimming pool filtration system helps to keep the water clear, clean, healthy and safe for all users.
There are altogether five ports in and out of the multiport valve and they need to be connected studiously to ensure proper operation of the system once connected to it. Some professional help would be required to connect your swimming pool filtration system if you are not very savvy with technical aspects. The connections should be precise if you are to ensure proper operation if not you could be penny wise but pound foolish. You could have a calamity in your hands with a damaged or inefficient multiport valve and a defunct swimming filtration system.
Operating a multiport valve in either a sand or diatomaceous earth filter is very similar and executes practically the same result and would have the relevant seven settings.
When the multiport valve is set to 1)
filter, it would aid in filtering the water and is the normal setting when you are operating the swimming pool filtration system.
The setting to 2)
backwash could be initiated when you need to clean the filter of all debris that has collected in the filter. The backwash would wash away all the debris and once clear water flows out it would be time to revert back to the filter setting.
The setting to 3)
rinse, is set just after you have completed a backwash which would ensure any remaining debris to be removed and the sand or diatomaceous earth to settle down and start the filtering process once again. The next setting to 4) waste, would bypass the filter which you could use if you are either vacuuming the swimming pool floor or need to reduce the water level. Water would be sucked in from the pump and pushed out through the system without using or passing through the filter.
The setting to 5)
closed, could be used when you need to shut down the filtration system which would close up the intake and out through the filter and pump.
The setting to 6)
recirculate, is to stop water from passing through the filter but would come through the pump and go back to the pool. This is useful when you are adding chemicals or in some cleanup operations. When the swimming pool is not used during winter for obvious reasons as the temperature would drop unbearably
multi port valve could be set to 7)
winter. This would shut down the system and allow water to drain from the multiport valve.
Using a multiport valve brings tremendous ease in operating a swimming pool filtration system which would use either a sand or diatomaceous earth filtration system.