Scubadawg's 187 Gallon Tank Journal - Edmonton

[sphelps]

Originally Posted by scubadawg

Thanks
In the original way I have it setup is exactly as your diagram except my left tube, I have a straight pipe like the right side, I do have a ball valve there, you can see it between the 2 unions, so basically I just need a T fitting for the durso.

Yeap that's cause I drew it up just for you. The ball valve won't serve much purpose but it's already there so no point taking it out. Just watch your heights, the primary needs to be a decent amount below your operating water level to prevent a vortex and your back up can't be too high either otherwise it won't take the full flow. Things look a bit high in your pics but its hard to tell.