drilling/bulkead questions

[danmar26]

Hi, I have decided to upgrade to a 90g. tank and need some advice.Where in north Jersey can I have the tank drilled?What size bulkhead fittings should I use?My sump will be 20g.Was thinking a Mag 5 or 7 for the return,I heard from someone who said Mags are tough to restart once they are shut off,they don't handle back presure well? Can anyone attest to that?Would I be better off going with another pump?Thanks---Ralph

[katspaw]

Danmar,
I have several Mag7 pumps on both of my tanks. And after running them for sometime in saltwater, they will need to be cleaned, because they will not restart. In the two years I had one on my 90 as the return, it only failed to restart one time after a power failure. They are not a pump you would want on an alternating swirl pump set-up. But I am still using the same pump as the return on the 90 that will be three in August. I do break it down and clean it every few months.

Tracey