: Should I use air chambers at fixtures being fed by PEX tubing. I saw some diagrams without them and wondered if the tubing's elasticity compensated.

Charlie,
water hammer arrestors should be used in all the standard places;
Quick closing valves like dishwasher, icemaker, clotheswasher and some people put them on tub or shower faucets in they can be closed quickly. Terry

• Wirsbo piping