Line sounds vary from loud rattle noises to strident creaks. The reasons for this may be loose pipes, water blocked air boxes, or the pressure of water is too high. Anchoring exposed lines is an easy way out; other facilities like anchoring lines hidden in the walls, floors or ceilings, may require a qualified professional.
Banging
As a rule, lines are anchored with pipe holders each 6 to 8 horizontal runs, 8 to 10 feet for vertical.
Solution:
• If your lines thump after you turn on the water, you may require adding holders, cushioning the lines with a rubber layer, or both.
• When you anchor a line, particularly a plastic one, leave space for expansion.
• You shouldn’t use galvanized holders on copper lines.
Squeaking
Only hot water pipes creak. As the line expands, it moves in its holder and rubbing produces the creak.
Solution: Cushion it the same way as a banging line.
Water Hammer
This sound appears when you turn off the water at a tap or setup very fast. The water running through pipes bangs to a stop, producing a hammering sound.
Check for: Loose lines.
Solution: Anchor the lines.
Check for: Damaged air boxes. These pipe extents set up behind fixtures and appliances, keep air that cushions the shock when running water is turned off. They may become filled with water and lose their efficiency.
Solution: In order to return air to the boxes, shut off the water at the main cutoff valve. Open all the taps to drain the system. Shut the taps and turn the water on again. The air boxes must fill with air.
Check for: the pressure of water that is above 80 pounds a square inch.
Solution: To lessen the pressure, set up a pressure-reducing bibb. If needed, you may call in a plumber to do this in case you do not want to it yourself.
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