Gravity ballast system upgrade

Just wanted to throw it out there for anyone interested, I know that there are past threads about it but figured id throw in my experience. I decided to upgrade the Gravity ballast system in my 2003 supra ssv, I replaced the rule pump with 2 tsunami 1200gph pumps, add a 1" thru hole and replace the sprinkler valves with electrical mechanical ball valves. Im probably into it about $250 and I'm sure you could probably find better deals and get your cost down a little. I timed filling 2 750's in the rear and the 1100 in the center. It took over 23 minutes to fill my entire system before the upgrade. After it took just less then 12 minutes. Ive seen some people do this who say they haven't seen any time difference but i sure did.