A stockman works fine but it's a little harder to make. If you can fit a 2" coupling in your overflow then use 1.25" pipe and a 1.25"x2" bushing. You'll have to drill or grind off the bushing stop so the bushing can slide onto 1.25" pipe far enough so the pipe protrudes far enough through the bushing to allow a 1.25" cap to fit. Just as with the stockman you'll need a 1/8" hole in the top of the cap to prevent siphon. You'll also want a 1.5x1.25" bushing for the top of the bulkhead for the standpipe and you'll still want to reduce the drain pipe size to 1" for best results.
A good tip when building a standpipe is to make it taller than you need and then trim the base of the pipe to fit after it's built.
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12-14-2010, 02:14 PM
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