I still dont know what to do. I thought stuff it! ill put the work into the Bean overflow, but making sure the holes are not to high or low, and then build the wier and making sure thats right etc, it stresses me out lol. With the Herbie i can change the height of the drain etc if its too high or low etc, and plus i can have it against the wall.
I was thinking about doing either 2 corner wiers or 1 centre wier. Did you find getting the adjustmenst right easy for dual herbies?
I was thinking a 1'' main drain, with 2, 1.5'' emergancies if i went with a centre overflow. I like to be extra safe! lol
If i went 2 corner overflows, i would do a 1'' main drain on each corner with a 1.5'' emergancy in each corner.
Yeah I would have done a Bean, but I'm up against a wall and we didn't want to lose any viewing space so side mounting wouldn't work either.
The cool thing about the Herbie for me is the ease of adjustment of the standpipes. Just make it higher or lower depending on your needs. I have my mains at the same height but backup one sits about 2" higher and backup two about 2 1/2" higher.
I basically used the forth hole as another drain. Totally overkill, but I needed it silent and flood proof. My drains are pretty big as well. Built the system with enough headroom where I could change pumps and double my flow depending on what I'm spawning at the time.