Quick plumbing question guys...looking for a few options.
My new kitchen will have a 3' kitchen (double bowl) centered under a 8' window and I am trying to come up with a few options (hopefully the best option) for plumbing/venting it.
What would be the normal, or recommended, way to install the DWV lines to meet code requirements? Since I can't vent straight up, some sort of horizontal run will be needed...
Here are the options I can think of:
1. Have the trap drain a little over 3.5 feet to the right, to a veritical 2" DWV pipe, where water goes down and vent goes up - problem with this is if I go over 3.5', I understand I need to use a 2" pipe, and I can't put anything bigger than a 1 7/16 hole thru my load bearing studs and still pass code.
2. Do the above, but instead of running the horizontal thru the wall, run it thru the back of the kitchen cabinets until it gets past the window.
3. Have the draine pipe go straight down after the trap (1.5 inche for about 2" and then into a 2" pipe in the basement cieling) and then use a 1.25 vent that goes up from the trap, goes, right almost 4' and then turns vertical and connects with vent in the attic.
4. Option 4 would be to use an AAV (Air Admittance Valve), apprarentley they are not "code" in Mass - funny story though, I went to the local plumbing supply store and asked him if they were approved here or not - his answer: No, they are illegal in Mass...they are over their on the top shelf /forums/images/graemlins/wink.gif
I am quite certain I have entered the realm of analysis-paralysis on this one...someone PLEASE just tell me what the best (or even good enough) way is. /forums/images/graemlins/confused.gif
PS: Yes, I know if I pull a permit an inspector will tell me what I've done wrong...but assuming I go that root anyway, I'd rather do it right the first time.
/forums/images/graemlins/laugh.gif
My new kitchen will have a 3' kitchen (double bowl) centered under a 8' window and I am trying to come up with a few options (hopefully the best option) for plumbing/venting it.
What would be the normal, or recommended, way to install the DWV lines to meet code requirements? Since I can't vent straight up, some sort of horizontal run will be needed...
Here are the options I can think of:
1. Have the trap drain a little over 3.5 feet to the right, to a veritical 2" DWV pipe, where water goes down and vent goes up - problem with this is if I go over 3.5', I understand I need to use a 2" pipe, and I can't put anything bigger than a 1 7/16 hole thru my load bearing studs and still pass code.
2. Do the above, but instead of running the horizontal thru the wall, run it thru the back of the kitchen cabinets until it gets past the window.
3. Have the draine pipe go straight down after the trap (1.5 inche for about 2" and then into a 2" pipe in the basement cieling) and then use a 1.25 vent that goes up from the trap, goes, right almost 4' and then turns vertical and connects with vent in the attic.
4. Option 4 would be to use an AAV (Air Admittance Valve), apprarentley they are not "code" in Mass - funny story though, I went to the local plumbing supply store and asked him if they were approved here or not - his answer: No, they are illegal in Mass...they are over their on the top shelf /forums/images/graemlins/wink.gif
I am quite certain I have entered the realm of analysis-paralysis on this one...someone PLEASE just tell me what the best (or even good enough) way is. /forums/images/graemlins/confused.gif
PS: Yes, I know if I pull a permit an inspector will tell me what I've done wrong...but assuming I go that root anyway, I'd rather do it right the first time.
/forums/images/graemlins/laugh.gif