![]() ![]() ![]() Limit hand bending to trade sizes 1/2, 3/4, and 1. A full shoe or universal bender is the preferred bending tool for IMC. Using the EMT bender will result in a slightly larger radius. It's strange how most people don't ask questions - I keep thinking of those people (for example) using sump pump hose because someone at the marina said it's ok. When an EMT bender is designated as suitable for bending rigid conduit, a bender shoe one trade size larger than the conduit to be bent is to be used. That one sort of made sense - but no way I was doing it without asking.Īnd I'm glad I did. Well, if we need to consider tubing spacing in a radiant floor heating installation the Radiant Professionals Alliance (RPA) recommends a minimum bend radius at 8 times the ID of the tubing. I know the right answers to those questions but several kept saying that pre-forming a radius was less restrictive than a 45 or 90 degree fitting. The bend radius is established primarily by three different factors: outside diameter (OD) of the tubing, wall thickness, and resin that the tubing is made from. Then the "dock experts" then came out of the woodwork with comments like "you don't want a top dip tube", "you don't need 1 inch for the vent" and even "just use that sectioned sump pump hose from Rona for everything". It kept standing sewage out of the hoses and little strain on the fittings - but required a 45 degree at the tank. I guess this is a typical story:Ī surveyor who also specializes in marine plumbing originally helped me figure out a "reasonable compromise" design (as he called it). Sometimes there is just too much "advice" that really isn't advice. ![]()
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