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Few minutes work if just the safety expansion valve leaks ( most probably only the valve)
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Close the main water inlet valve;
7 C# u$ T" g3 h2 u" c7 J3 Lopen all faucets in the house including showers to drain all water out in the pipe line;6 z/ l+ I; w1 Z3 X+ s4 y8 K2 h
Close the cold water valve to the water tank if you have one;$ J5 V" `# Q( k% D, o4 l3 l
Shut down the hot water tank by closing the temperature switch to off;
2 U) p) H* d; ZOpen the drain valve at the bottom to drain all the water out;- j$ b( J+ c& D! x6 P) D( S
Then remove the expansion valve, go to home or Canadian tire. they all have one.3 K( }/ `8 O% k* N( g5 R4 J
4 j3 _7 J" `2 r/ e0 t" \$ d3 eAny doubt text me at 780-880-2698% W, U8 p8 ~ j, Y7 W+ W
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