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  1. bigwaterbill

    residential water hammer

    By throttling the shut off (globe type stop waste valve) upstream of the water meter I can reduce the pressure spike by 40 psi. Before it would spike from 80 to 140 psi now it spikes only 20 psi over 80 when a cold water valve is closed quickly. Is this an acceptable range? Betrueblood suggested...
  2. bigwaterbill

    residential water hammer

    Front load washer (solenoid) Kitchen sink, lav, laundry tub (1/4 turn type) Hose bibb (old globe type) Bath shower ( single knob cartridge type) Toilet ( Korky fill valve)
  3. bigwaterbill

    residential water hammer

    Will reducing water pressure from 80 psi eliminate water hammer? What pressure would be needed? Any and all suggestions appreciated. 1/2 copper cold water supply line coming off 3/4 main line. Feeds 9 cold water fixtures and all cause water hammer at the tank-less water heater. All fixtures are...
  4. bigwaterbill

    Deck Ledger/Point Load

    The bolts are 8"x1/2" two every 16"o.c. Pardon my previous description. The blocking rests on sill plate of foundation (walkout basement). Blocking is nailed with 3-16d nails through each side of the floor joists into the ends of each side of the blocks. What remedial action can I take to add to...
  5. bigwaterbill

    Deck Ledger/Point Load

    I have a 2nd story deck hung by 3 beams on metal hangers ( 10'apart) attached to a 2"x10"x20'ledger bolted (2-1/2" bolts & nuts @16"o.c.)through dbl. 2"x10" blocking between each joist. At 50lb.psf the outer beams (2-2"x10") at the hanger ledger connection would have a max. load of 1500lb. and...

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