If you observe that water pressure inside the house is over 50 psi, you should lessen a pressure installed by a plumber for your water heater. High pressures lead to quicker appearance of sediment.
Sediment can be dissolved with a chemical descaler from A.O. Smith called Mag-Erad. Apply it when the gas is switched off and no water is available inside the gas water heater. If the gas can be left on according to the instructions, do not do it, because it will lead to the damage of the flue. The product can be applied for electric water heaters; you should only empty the water heater first. Ask a licensed plumber to install a curved dip tube and flush water heater.
The Curved Dip Tube Flush Method Of Removing Sediment
Most water heaters have frequently a straight dip tube. Water enters through the cold water inlet and down the dip tube to the bottom of the water heater. The water that runs fast cleans only the small part at the bottom of the water heater and removes sediment, but it cannot get rid the rest of the water heater's dome-shaped bottom from sediment. If you drain the water heater with the drain valve, you will get rid only of an insignificant part of sediment situated near the drain valve itself.
If you have a curved dip tube nstalled, the water will swirl quickly around the dome-shaped bottom of the water heater and it will clean the drain valve from sediment. Before you install a curved dip tube, you should at first shut off the incoming water to your house and then take away the cold water nipple on the right side of the water heater. Then you should insert a pair of plastic handled pliers in the cold water inlet and unscrew the original dip tube. Pull the dip tube up and out of the water heater with the pliers. Clean any rust that does not give you to do it. Note the direction of the curve in the new curved dip tube at the top of it using a marker. Then you should wrap the nipple using teflon tape eight times on its threads and put the new curved dip tube in the opening with the marked side marking along side the wall but going the long way around the bottom of the water heater towards the drain valve.
You should have a plumber install a 3/4 inch ball valve for a drain valve. It rinses with a larger opening than a plastic drain valve.
The measures required for taking away Sediment in Commercial Water Heaters
If you hear much noise from your commercial water heater or smell a foul odor, you are sure to take away the sediment building up inside. Such measure will save 5% on energy bills in a commercial gas water heater, but it is unable to save much money in a commercial electric water heater. Having a commercial water heater, you should switch off the gas or electricity and turn the water to the cold line off, because any recirculating system should be switched off.
Then you are to open the T&P valve to relieve pressure off the lines and make draining of the water through the drain valve possible. Connect a water hose with the drain valve to let water drain out. If no changes are observed, it may be explained with the blocking of the drain line with sediment. You should take away the drain valve and break up the sediment using a screwdriver. Get rid of any rust there too. Put a drain pan beneath the open drain valve port. Go on to flush as much sediment as possible. If you are eager to get rid of all the sediment, you should hire a plumberfor this purpose.
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