I want to make a shopping list for my ballast system upgrade. I want the list to be comprehensive since my plan is to buy anything Id be getting from wakemakers on the weekend of Black Friday. I will source the pumps from EBay if cheaper. I will source standard plumbing fittings from my local plumbing store when possible if cheaper than WM.
Current setup
1 Rule 2000 (1200GPH) fill pump
Sprinkler valves as a manifold for fill
3 drain pumps (~700GPH)
No vent lines or check valves
1100 rear locker bags
650 center bag in basement locker
Thoughts and Assumptions
My system will be the standard aerator system, repurposing existing components where logical.
I think that I would rather have a dedicated vent thru-hull rather than T-ing into my drain line. It seems wasteful to buy a t-fitting and a check valve for the vent line just to avoid cutting a hole in the side of my boat. Im not bashful about cutting holes and having more thru-hulls. No worries.
Since I dont currently have vent lines on any of my bags, I would need to buy the bag fittings and hose for these vent lines, if I am going to have to buy flowrite fittings and some hose ANYWAY, I might has well buy 1 fittings and hose and use that for the FILL and repurpose the Ύ existing fill fittings/hose for venting.
I am fine with Ύ hose/fittings/thru-hulls for draining because draining seems to be less of a priority than filling and much of it can be done while underway or even after the boats pulled out of the water (assuming a level boat). Plus, when draining, its cool to see water shooting a good distance out of a Ύ thru-hull!
I am not sure about the whole vented loop vs. check valve on the fill lines. Obviously the vented loops are a LOT more expensive than check valves. It sounds like if I dont use vented loops that the bags will fill on their own while underway? I am not a fan of that.
I currently have issues with the rear bag draining through the drain hole even with all the pumps off. I am wondering if I need to have the drain thru-hull located higher up (or possibly more forward?) I am thinking the bag is siphoning because the top of the bag when filled is higher than the drain thru-hull? I dont know any solution for this other than placement of thru-hull.
Setup
1. Center bag (1180 gravity bag)
a. FILL: existing factory thru-hull, existing factory ball valve, new 1 hose, new T1200 Pump, new 1 flowrite bag connector
b. EMPTY: existing Ύ flowrite bag connector, existing Ύ drain hose, T1200 pump, existing Ύ thru-hull
c. VENT: repurpose Ύ flowrite bag connector, repurpose Ύ hose, add Ύ thru-hull
2. Rear Bags (x2)
a. FILL: New 1 thru hull, new 1 elbow and ball valve, new 1 hose, new T1200 pump, new 1 bag connectors
b. EMPTY: existing Ύ flowrite bag connector, existing Ύ drain hose, T1200 pump, existing Ύ thru-hull
c. VENT: repurpose Ύ flowrite bag connector, repurpose Ύ hose, add Ύ thru-hull
Shopping list:
1180 Gravity Games bag
2 Attwood T1200 Pumps: I need a total of 6 of the T1200s. I currently have 3. I think I might steal a 4th one from my throw-over and repurpose the factory Rule 2000 as my throw-over. They are basically the same pump, but the rule takes more voltage and is bigger. It seems to make sense to have all uniform pumps anyway.
2 bronze thru hulls (1 inch?)
2 bronze elbows
2 ball valves
2 sets of 1 flowrite bag/hose fittings
2 black plastic thru-hulls
A whole bunch of hose clamps
1 hose (length?)
Vented Loops?
Check Valves?
Questions
What size thru-hull is optimal for the T1200 fill pump using 1" hose/hardware/fittings?
Where do I need to put check valves or vented loops?
Am I correct in my assumption that I need to locate my rear bag drains more forward?