my sta-rite sand filter for reference runs about 17 as the norm..will run as high as high 20's to 30 if i really need a backwash..your manual or on ring on top of the filter likely tells you the maximum rated pressure. for mine, it's about 60 psi..that would be my only concern in terms of what pressure can be handled..can't remember pvc pipe pressure rating but pretty high from what i recall.