how many elbows is too much?
Is there any rule of thumb on whether 6 elbows on 1/2 copper is too many for good water flow to a shower mixer? I'm installing a Kohler with their large shower head. I can either use the existing supply lines with 5/6 elbows total front the crawlspace ceiling line below, or I can cut out 2/ea by routing more directly in the crawlspace. Do you think we will have a noticeable improvement in water flow or not? Thanks much.