I'm installing a new water softener. I have a very small area to tie in to the water line between the pressure regulator and the T that goes to the water heater. The pipes are in the wall and I need to run them out of the wall. This will require a lot of elbows. There is one area I'm going to have to use 3 elbows in about 10 in of line or less. I'm using 3/4 in PVC. Is there a code, regulation, or rule of thumb about how many elbows you can use in a certain amount of space?