1st floor and 2nd floor washer

[Kevinmichele123]

Can I run one 2 inch water stack for a washer on first floor and a washer on the second floor ??? Thanks kevin

 

[Jadnashua]

A WM has a fixture limit of 3, and a 2" pipe can support up to 16, so, if I'm reading the tables properly, you can put two WM on a 2" pipe.

 

[Sponsor]

 

[Kevinmichele123]

A WM has a fixture limit of 3, and a 2" pipe can support up to 16, so, if I'm reading the tables properly, you can put two WM on a 2" pipe.

. Thank u sounds great

 

[Kevinmichele123]

Thank u again and only (1) 1 1/2 vent

 

[Jadnashua]

You can't use the 2" pipe between the floors as a vent (although you could above the one on the second floor). You need to run a vent from the first floor up, and then you can combine it with the one from the second floor 42" above the floor or 6" above the flood plane of the highest fixture (IOW, you only need one going through the roof, but each one needs a proper vent and it can't be the drain pipe connecting them). General rule with few exceptions, once a pipe is used as a drain, it cannot be used as a vent. Venting WM isn't one of the exceptions.

Depending on where you live, while the vent might be okay inside as 1.5", often when it goes through the roof, it must be expanded to become larger to prevent hoar frost from closing it off (having the water vapor freezing and then closing off the vent in the cold).

 

[Kevinmichele123]

Ok thank so I can not drain the 2 nd floor washing into the vent of 1 st floor washer if I understand that correctly

 

[Jadnashua]

Ok thank so I can not drain the 2 nd floor washing into the vent of 1 st floor washer if I understand that correctly

That is correct, at least between the two, you need a second pipe to act as the vent from the first floor. You can join it with the vent from the second floor, so you only need one to go out the roof, or potentially, join it into an existing one to prevent putting a new hole in the roof. Note, any horizontal sections of the vent need slope, just like any drain, since they could have precipitation or condensation and that must drain, keeping the vent open.

 

[Kevinmichele123]

Thank u any thoughts on washing machine pans or floor drains in laundry room

 

[CountryBumkin]

You asked about this in a different post (in case anyone wants to see that response). I think a pan is a good idea as long as you are checking it daily for water. It won't do any good for a hose break, but if the washer has a small seal leak (drip) you can see the water build up in the pan and fix it before any of the flooring gets wet and damaged.

In order to have an effective floor drain in laundry room you would need to be able to contain the water to that room (raised door thresholds or such) and the drain would need to be able the max amount of water from a burst hose or pipe (I think about 650 gph), otherwise the room would just overflow.

 

[hj]

If you use a pan, it needs a separate drain NOT CONNECTED to the drain system.

 

[Kevinmichele123]

Thank u once Again how about cost of floor drain install verses premium hoses like flood check

 

[Reach4]

Flood Check hoses would be cheaper. A floor drain could collect water from spills or a leaky washing machine or maybe a water heater T+P valve. A floor drain could be used to receive the drain water from your water softener.

 

[Jadnashua]

A floor drain works best if the entire floor is actually sloped to it. That's a significant effort, and can be really problematic on the transition out of the room. If you don't have some waterproofing between the floor and walls (and a way to keep it from just going out into the hallway), a floor drain isn't much use. Plus, because it usually doesn't get frequent use, you need a trap primer to keep the water seal so it doesn't become a direct opening into the sewer. Useful, if required, lots of work, if not.

While a hose can break during use, probably a more common issue is while just sitting there. The best solution is to have and USE shutoff valves at the wall. I think I read some not so good reports on the Floodsafe hoses...may be wrong...do a search and see.

 

[Reach4]

I think I read some not so good reports on the Floodsafe hoses...may be wrong...do a search and see.

Floodsafe hoses have bad reports, but they were not being discussed on this thread.