Tailpiece Trap Primer

I'd like to know what everyones thoughts are on using a little grey water for priming 2 floor drains in my basement... Is the tailpiece on one lav enough to keep 2 traps full?

Beyond that, any objections to using pex for the primer lines? I assume they need to be sloped towards the traps as well.

There are "trap priming" tailpieces with a diversion baffle and a tap for piping to ONE floor drain. Trying to use one for two drains means you have to develop a means to separate the water flow into two channels EQUALLY, which is not always an easy thing to do with drainage.

If the use of the lavatory is offen enough it should work for two drains, like hj said you could have a prob. feeding two, but if you pipe them right it should work. Link at bottom of page.

http://www.siouxchief.com/Resource_/ProductMedia/54/200-213%20Spec%20Sheet%2010-08.pdf