The screens unscrew. Buy a piece of rubber tubing just large enough to fit over the threads and then use the pumps to pull antifreeze thru. As far as glycol not causing pin holes in my washdown hose, I do not have another explanation. Once is a fluke twice is a trend. The hoses are Lund factory.
I 've had a problem with non-tox antifreeze pin holing my wash down hose. Happened the first year when I did it and the second when the dealer did it. Was able to get free replacements from the dealer but they are a pain to change on my boat. Last year the dealer winterized and there was no problem. Recently asked what they did differently and they said that there were no notes to let me know. Kinda frustrating, shouldn't be a trade secret. Good luck with the wintererzation.
Stay away from the Bass Pro nets with the gold handle. Had an early version and it worked well. Bought a new one this year and it is awful. Hooks as well as fish jaws can't resist it. Total garbage! The only saving grace is that it was inexpensive. Still an absolute waste of money.
I have a sea star system that ties my motors together, Don't think it's a do it yourself project though. Do you have separate throttle controls for the motors ? Good luck
Cisco is manufactured right here in the USA, give them a call. Excellent products as well as customer service. Plus as a bonus you can understand the person you are talking to.
For 3 color set ups we use cheap okuma level windes in the 30 size. Drags seem to loosen while riding but besides from that they get the job done. The 30's have enough room for backing to be able to run them out on boards. As far as rods go I like a medium weight rigger rod in 8'6'". Good luck!