Greetings.

My basement has an overhead Sewer pipe going out to the front. Therefore, if I want a washing machine in the Basement, I have to pump the discharge up and out in some way. Right now, the discharge goes to the sump pump hole and then is pupmed out. I want to install a washing machine basin (Supmpump box) from Home Depot and connect it directly to the overhead sewage pipe. What is the best way to connect to the 6" PVC pipe?

Thanks!

Jeff.

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Originally Posted by iamjeff

Greetings.

My basement has an overhead Sewer pipe going out to the front. Therefore, if I want a washing machine in the Basement, I have to pump the discharge up and out in some way. Right now, the discharge goes to the sump pump hole and then is pupmed out. I want to install a washing machine basin (Supmpump box) from Home Depot and connect it directly to the overhead sewage pipe. What is the best way to connect to the 6" PVC pipe?

Thanks!

Jeff.

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Hi Jeff.

I'll be glad to advise you just as soon as you give me the specs on the "Sump pump box" that you're planing on installing. Are you sure it's not a 4" PVC main thatyou wish to connect to? Regards, tom

Hi Speedball.

It's a Flotec model from Home Depot:

* Maximum pumping capacities up to 2880 GPH.
* Heavy-duty 10 gallons polypropylene drainage tank.
* Model FP0S1800LTS - 1/4 HP.

I was wrong - it's a 4" PVC Sewage pipe. Do I simply cut a "Y"? Do I need a trap? Are there 4" to 1-1/2" PVC Reducers? Can you direct me to a diagram on how this should look?

Thanks for your help!

Jeff.

Quote:

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Originally Posted by iamjeff

Hi Speedball.

It's a Flotec model from Home Depot:

* Maximum pumping capacities up to 2880 GPH.
* Heavy-duty 10 gallons polypropylene drainage tank.
* Model FP0S1800LTS - 1/4 HP.

I was wrong - it's a 4" PVC Sewage pipe. Do I simply cut a "Y"? Do I need a trap? Are there 4" to 1-1/2" PVC Reducers? Can you direct me to a diagram on how this should look?

Thanks for your help!

Jeff.

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Hi Jeff,
Just one more question. On your installation sheet does it give you the option of hooking direct to the sewer line or is a trap necessary and does the box have any vent openings on top or does it vent through the inlet? Tom

Hi Tom.

It has an inlet on the side, the discharge comes out from the top. It has a separate vent stack. Here is a diagram: http://www.flotecpump.com/pdf/PS80-29.pdf

They offer no connectivity suggestions. They stop their cutaway diagram at the height of the utility sink.

Any suggestions would be appreciated.

Thanks.

Jeff

OK Jeff, Got it.
Since I don't see any pipe sizes listed in the drawing I'm goinig to assume all pipes are 2" untill you tell me differently.
You will come off the inlet of the box with a 2" "P" trap with a 36" raiser to hook the washer into. For the discharge you will cut in 4X2" wye or a 4X2" combination 1/8th and wye, (which ever works best) into the 4" sewer main and connect to that.
The vent will tie back to a basement fixture vent. If there is no fixture in the basement that's vented you must run the vent up (1) out the roof, (2) to the attic and revent back to a exsiting roof vent or (3) to over 6" above the flood rim of the highest fixtures vent and tie back to that fixtures vent. More questions? I'm as close as a click. I'm amazed that the installation instructions didn't cover the connections.
Good luck, Tom

Sorry to butt in, but is it possible to have the washer discharge directly into the 4" overhead drain pipe? I have the same problem as outlined, but my washer is supposed to drive discharge up to eight feet high. If it is possible to go directly into the overhead drain, how would I plumb for this so that there is no backup into the washer? Thanks.

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Originally Posted by ajberezo

Sorry to butt in, but is it possible to have the washer discharge directly into the 4" overhead drain pipe? I have the same problem as outlined, but my washer is supposed to drive discharge up to eight feet high. If it is possible to go directly into the overhead drain, how would I
plumb for this so that there is no backup into the washer? Thanks.

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Nice try , but no cigar! If you connected directly to the sewer line from your washer you would be opening up a direct OPEN CONNECTION from the sewer into your home. Every time you flushed a toilet or drained a bathtub the discharge would find itrs way into your washer. But that's just the begaining.
When the washer's setting empty there will be a open connection from the house sewer into your washer expelling sewer gas into your house.
It's possible to do this without a holdng tank and a pump but you would have to have enough room to trap, vent and run a washer stand pipe off the overhead sewer line. Even then you would have to install a check valve on the washers discharge hose to prevent the dirty water from draining back into the washer. Most overhead sewer lines don't have enough room to install a washer stand pipe. Rethink your project and If I can help click on back. Regards, tom

Tom, thanks for the reply. I can do everything, except the washer stand pipe. Therefore, a "dirty water" sump collection system will be the way to go. In that regard, does such sealed sump system need to be vented directly through the roof, or can it be tied into an existing vent system? I've read both recommendations. Tying into an existing vent system would be quite simple in my basement, but a new vent system would be much more difficult. Thanks.

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Originally Posted by ajberezo

Tom, thanks for the reply. I can do everything, except the washer stand pipe. Therefore, a "dirty water" sump collection system will be the way to go. In that regard, does such sealed sump system need to be vented directly through the roof, or can it be tied into an existing vent system? I've read both recommendations. Tying into an existing vent system would be quite simple in my basement, but a new vent system would be much more difficult. Thanks.

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There's one more option to consider. You can cut a Wye or combination wye and 1/8th. Bend and install a vent before the trap. You may revent back into a dry vent if you wish. From the trap run a raiser up to within a few inches of the subfllor. Install a 2 X 1/12" compression fitting,(see image) on the raiser and connect the washer hose permanently to the compression fitting. There must also be a check valve installed on the washer hose where it exits the washer. A holding tank and pump are pricey so unless you specifically want one I'll hold off researching the different brands. Best, Tom

You may not need to do any thing since the washing machines pumps allow you to pump at least 12" above your machine height. Also a sum pump generally has a lot more horse power than the amount of water discharged from washing machine. If you want to use a pump to transfer water from machine discharge, copy the same HP.