90% elbows kill output flow. If you are tring to get the most out of what you already have????? I could not find anything that curved how much and where I need it. So... I made my own./ You can head fine sand (sand box sand) to mediem high on the stove. Put the sand in PVC or plexi tube pack it hard. wait a few minutes Plug the ends or it will colaps in the middle. I can curve 1/2" PVC 180% U shape in less than 4". It may take you 3-4 trys but it is sweet once you get it.
