John/Charleston
Junior Member
Work has slowed so much, so long, I'm forced to work on my own house. Hopefully I can explain this clearly....
The first pic below shows the layout of my bath. The yellow area is the floorplan of the master bath which backs up to the hall bath. The circle with X marks the main drain. The others are as marked with the "tub drain" (outside the yellow) being from the adjoining hall bath. The distances from the main drain to the fixtures are:
Shower = 65"
Toilet = 20"
Tub drain = 40"
Vanity = 24"
The second pic is the main drain with a 3x3x2 fitting balanced on top. My thought was to fernco the pvc onto the main drain, put a 3x3x2x2 Y coming off the 3" side of the fitting and go from there to the toilet, shower and tub. Then the 2" on top of the fitting in the pic would 90 over to the back wall as a vent where it would also pick up the vanity coming in at the wall point. The vent would be able to travel into the attic and tie into another nearby vent or penetrate the roof on it's own but there would be no other vents for the fixtures mentioned.
If it's important, there's about 20" of space from where the bottom of the fernco would be to the bottom of the subfloor.
I'm sure this must read like one of those logic puzzles but hopefully the explanation is clear. What I'm unclear on is...
Do I need more venting for the shower and/or tub?
Is it OK to Y the shower and tub lines into the toilet line before they hit a vent or will that suction out the traps?
If I need to put another fitting above this one, can I cut the top off the cast iron and fernco onto the cut off top?
Does this look workable or am I way off base?
Thanks for all help!
The first pic below shows the layout of my bath. The yellow area is the floorplan of the master bath which backs up to the hall bath. The circle with X marks the main drain. The others are as marked with the "tub drain" (outside the yellow) being from the adjoining hall bath. The distances from the main drain to the fixtures are:
Shower = 65"
Toilet = 20"
Tub drain = 40"
Vanity = 24"
The second pic is the main drain with a 3x3x2 fitting balanced on top. My thought was to fernco the pvc onto the main drain, put a 3x3x2x2 Y coming off the 3" side of the fitting and go from there to the toilet, shower and tub. Then the 2" on top of the fitting in the pic would 90 over to the back wall as a vent where it would also pick up the vanity coming in at the wall point. The vent would be able to travel into the attic and tie into another nearby vent or penetrate the roof on it's own but there would be no other vents for the fixtures mentioned.
If it's important, there's about 20" of space from where the bottom of the fernco would be to the bottom of the subfloor.
I'm sure this must read like one of those logic puzzles but hopefully the explanation is clear. What I'm unclear on is...
Do I need more venting for the shower and/or tub?
Is it OK to Y the shower and tub lines into the toilet line before they hit a vent or will that suction out the traps?
If I need to put another fitting above this one, can I cut the top off the cast iron and fernco onto the cut off top?
Does this look workable or am I way off base?
Thanks for all help!