Help, Im Scared Of This One

NailGunner

For the first time I have to cut out a small section of my homes slab to tie into the plumbing to build a second bath. Looking down the access hole outside I see its made of PVC and is about three feet underground. I plan to try a mortar blade on a circular saw to carve up the cement and sledge hammer the concrete out. Im guessing its about 4 inches thick. Am I correct for a 1961 concrete block home on concrete slab? From there I plan to tie in with new pvc lines. It looks like the fall off from the new toilet flange will be a large fall off from floor level down 2-3 feet to the old pvc line. Isnt that way to steap. I heard its suppose to be 1/4 inch per foot fall off grade. Looks like ill have to dig out 2-3 feet of dirt after I break through the concrete. And tieing into the old pvc will require about a 90 degree curve in the pvc where the new meets the old. Is this OK? Or will this cause backup problems. And I plan to just recement it all in when done. Anything critical Im missing. Any electrical lines to worry about. I dont think so cause the electrical main enters the house 40 feet away on the side of the home. And will I hit any rebar? And I guess I have to cut through it.

ProWallGuy

What type of contractor are you?

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NailGunner

My flip homes actually look fantastic when Im done and better than the flips you see on TV. So when you ask what type of contractor I am, I would say autistic. My work alone is fantastic but I cant explain things well to people, so to contract out is hard cause I cant tell them what I want to have done. So dont prejudge me by my autism, as its way harder than the work for me. I had to retype this forum three times to get it right with help. To deal with the city is hard for me so I come to this forum for advice in advance of going for a permit. I can do anything if you put it in writing or tell me in depth. I cant interact with others very well. Help me in my career so I can succeed. My work is well above what you know as good. Most areas outside of communication I am well past the average human. Please help me in my quest.

rino1494

So, where is the pictures ??

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NailGunner

im sorry my firewall wont let me do the pics. my security is a priority and i dont want to lose my precious items on my computer. i control incoming and out going far more than the average person. please forgive my honesty.

Forry

Hey nailgunner, sounds like you're right on track... I like to use h2o with my skil saw/ diamond blade, but I have a saw just for that... it's hard on the saw and DEFINETALY not safe, but the work is faster and cleaner... Make sure you use gravel, then concrete, so the next guy can dig it up too. 1/4"/ft is min, so more is ok. 90 deg at the bottom of that drop is ok too. Good luck!

NailGunner

im not autistic. but i do feel stupid on this one cause its new for me. i have done research on multiple web sites, so tell me whats crazy about my thoughts. if i rent a wet saw i got a sticky mess and a bill. if i buy a few circular saw blades i got a powder mess and a smaller bill. i can use a saws all for any rebar. and a shovel digs for me faster than any fool i could hire. the only things i need to know are pitch of the line, any wrapping of the lines prior to laying cement, and if i can incorporate a 90 degree angel into the pvc line without plug up. i know they say you have to keep the plumbing lines staight as possible. so what am i missing, fixing the rebar or something? this is no rocket science but a few short answers will do.

NailGunner

i know from cutting hardwood floors with a skil saw you can lose a your "curious george" real quick if you dont hold tight. i use a saws all now. thanks for the diamond tip info as i thought it was a mortar blade that i needed for the skil saw.
my brother told me there is a trick to fall off at 1/4 inch per foot. he said if the fall off is to heavy in the pvc lines then the water being to heavy leaves faster than the toilet paper, leaving the toilet paper to build up in the pvc lines until it plugs. he is a millionaire engineer, so i put some weight into his thinking process. im checking my brothers thinking i guess. any input????

Nathan

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Nathan

"He is no fool who gives what he cannot keep to gain that which he cannot lose." - Jim Elliot