I really didn't need this but I wanted to play around and see if I could build a live well for my kayak. Since I didn't want to mount a pump in the kayak (drilling a 2" hole thru the hull in the process), I had to figure a where to place my fresh water intake pump. I wanted the live well to be portable. So nothing is to be mounted to my kayak. I tested the T500 pump and found out that it needed a manual primer since I was going to mount it above the water line. So I purchase two hand priming bulbs for testing. (Only needed one, I purchase two different types) I mounted the priming bulb after the T500 pump. After a few pumps and the water reached the T500 it primed. I purchased a simple backflow valve and put it between the T500 and the lake water. It worked in keeping the water at the pump when I turned the T500 off. I didn't like this setup for the largest fitting that I could get on the manual priming bulb was 1/2" stock (modified it to 3/4") which restricted the flow of the water. Even the modified restricted the flow a bit but not as bad as the stock. So I researched a self-priming pump. The least expensive that I could find that was 12v was the one at Harbor Freight. I took a gamble and purchased it with a 20% coupon. Tested out great, but it's very noisy compared to the T500. I mounted it on a block of old wood for testing on the water. The bin I found at Lowes, was under $10 and was sturdy for the testing. The Green transfer pump is on the heavy side, so I mounted it on top for testing as shown in the picture. Since it's only for adding fresh water, I figured I will be ok for now. There are many other options out there but they cost more money than I wanted to spend on the little project. The water intake pipe with the mess cover unscrews so I can place it into a scupper. Once I install it in the scupper, I screw the mess cover back on. The pipe is cut to length to keep the screen at the proper depth but close enough to allow me to beach the kayak. I think it holds between 15 to 20 gallons. My wife made fun of me for how it looks on the back of my kayak due to it's size. I wanted the most volume that I could fit into the cargo area.
Here is the outside, overall view. The T500 recirculation Aerator kit is from Amazon for $31.51. The PVC and tubing are all 3/4".
The intake Green pump is from Harbor Freight 12 Volt DC Transfer pump for $39.99 (less 20% coupon).
The overflow I made from just standard 3/4" pvc fittings. I found that I drilled a few holes at the top, the stand pipe would be able to keep up with the intake pump.
I added the through hull to keep any overflow. When I was testing the stand pipe, I found that it would not keep up with the water being introduced. I decided to be on the safe side to install the through hull overflow. (As stated before, via testing I discovered a few holes at the top of the pipe allowed it to keep up with the green pump)
This is a left over pool pump part. I put it on so I could align the overflow pipe into the scupper hole.