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I am contracting my own house build on an acreage in Oklahoma. I have a question about adding an RV cleanout location. The drone picture below shows the initial stage of the below slab plumbing layout currently being done. The pad site has about 3' of fill on the right and 3' of earth was removed from the left. The septic tank (traditional gravity system with leach field) will be located close to the area where the rough plumbing exits on the right. The leach field will be down hill behing the trees located at the top right. Originally, we were planning to put the RV cleanout in the RV garage (top left) and have the Cleanout tie in to the waste line to the right of that where the master bathroom and utility closet tie in. Prior to starting the job, the plumbers expressed some concern with tieing in there due to the extremely long distance from RV garage to septic and how deep everything would need to be. They also worried that in the process of doing an RV clean out of the system, the large volume all at once could cause back ups into the master shower, floor drain in the utility closet, etc. So they offered to run an independent line across the back of the property from inside the RV garage, under the footing and tieing in before the septic tank on the outside. Picture below shows the initial start of that. The length would be about 180'. After thinking about that, I decided against it as the fall would be 1/8" per foot at best and I'd have a septic line running across my yard where hardscaping and landscaping and pool locations are yet to be determined.
So here is my question and I wanted to get opinions as to if this is fine, if it should work, or if there is any problems with this idea. Can I put the clean out location in one of the areas where the black arrows are and then core drill the footing (rather than go under it) and run the line from the outside clean out, back into the house and tieing in one of the two locations indicated by the black lines. Fall should be closer to 1/4" per foot and tieing in here is down hill from the master, laundry, kitchen. The rough in at the lower left represents a powder bath and two bathrooms , both of which tie into main waste line from the top dropping a short distance vertically. So I can't imagine the actual RV clean out process causing any back ups here. This location would allow me to pull up the RV next to the three car garage and clean out there rather than inside the RV garage. Quite honestly, I'm not sure that having the RV clean out on the outside is not better from a mess and odor standpoint.

I appreciate your feedback! Thank you.



Brown Rectangle Wood Line Brick
 

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Pornstar, Service Plumber
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Go ask another plumber. You don't belong here, this site is only for plumbers. We won't be giving you answers.

This may be the nicest reply you receive.
 

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Reverend, R.S.E., Master Plumber
Nice Head, what’s in the bag?
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If you have the money not just for an RV, but a custom home with amenities to supplement your three car garage and RV lifestyle. Why are you asking guys who mostly work hard for a living, out of a two bedroom house in the ****ty part of town; for free advice? Just wtf is wrong with the internet.
I was thinking the same.
And why is this person driving around in a RV they could be airB&Bing or staying in fancy hotels..

then again, I have a nice house in the city, and a basic cabin on a lake in the woods..
 

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I am contracting my own house build on an acreage in Oklahoma. I have a question about adding an RV cleanout location. The drone picture below shows the initial stage of the below slab plumbing layout currently being done. The pad site has about 3' of fill on the right and 3' of earth was removed from the left. The septic tank (traditional gravity system with leach field) will be located close to the area where the rough plumbing exits on the right. The leach field will be down hill behing the trees located at the top right. Originally, we were planning to put the RV cleanout in the RV garage (top left) and have the Cleanout tie in to the waste line to the right of that where the master bathroom and utility closet tie in. Prior to starting the job, the plumbers expressed some concern with tieing in there due to the extremely long distance from RV garage to septic and how deep everything would need to be. They also worried that in the process of doing an RV clean out of the system, the large volume all at once could cause back ups into the master shower, floor drain in the utility closet, etc. So they offered to run an independent line across the back of the property from inside the RV garage, under the footing and tieing in before the septic tank on the outside. Picture below shows the initial start of that. The length would be about 180'. After thinking about that, I decided against it as the fall would be 1/8" per foot at best and I'd have a septic line running across my yard where hardscaping and landscaping and pool locations are yet to be determined.
So here is my question and I wanted to get opinions as to if this is fine, if it should work, or if there is any problems with this idea. Can I put the clean out location in one of the areas where the black arrows are and then core drill the footing (rather than go under it) and run the line from the outside clean out, back into the house and tieing in one of the two locations indicated by the black lines. Fall should be closer to 1/4" per foot and tieing in here is down hill from the master, laundry, kitchen. The rough in at the lower left represents a powder bath and two bathrooms , both of which tie into main waste line from the top dropping a short distance vertically. So I can't imagine the actual RV clean out process causing any back ups here. This location would allow me to pull up the RV next to the three car garage and clean out there rather than inside the RV garage. Quite honestly, I'm not sure that having the RV clean out on the outside is not better from a mess and odor standpoint.

I appreciate your feedback! Thank you.



View attachment 133127
Is this the outline of the state of Oklahoma?? Coulda fooled me
 

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I would just dump it on top of the ground,just be sure to put a trashcan with garbage bag in the bathroom and throw all paper in trashcan,then dump all turds on top of ground or better yet just drive to someone you don't like to well and dump it in their yard about 3:00am in the morning then haul azz outta there lololo
 

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You trust your plumber to rough your house and don’t question the fall of the rest of the pipe, then go behind his back and ask other plumbers if 1/8” per foot fall will be sufficient for another drain line? Just so you know 1/8” per foot is standard for 3” and larger. An RV garage, now I’m jealous!
 
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