Ok, so I tried to contact Alphacool to get the Single D5 plexi kit as the Alphacool Dual D5 is actually very poor and the Single Top with a single D5 has a much much much better design than having the Single D5 in the Dual top. I'm going to have lots of 90 degree bends (=High restrictions = low flow = higher temps) in my loop. These Alphacool Repacks are marketed as Modular, meaning you are supposed to be able to change anything you want on the Reservoir itself, such as dual pump to single pump tops by just buying and swapping the components.
They just keep linking just the back plexi cover, however as I have tried to explain to 3 different people, there is a middle part that contains the pump's volute and a large pump intake fitting (large threaded pump intake with holes to allow air to escape the pump and into the top of the reservoir).
They keep linking this which as you can see is just a back cover and hasn't got a pump intake/volute and doesn't direct the pump to an outlet:
With just the rear plexi replacement they keep linking me to means:
1) The pump can be mounted to the plexi but without the volute and middle section it will just spin and run dry until it overheats and dies.
2) There's no watertight seal between the Res and the plexi back cover without the middle part that bridges between the res and the rear plexi cover (it's just a bloody cover!) which provides the watertight seal meaning all my expensive work will have been a waste of time and money
3) There's apparently no way to get the middle part of the res from Alphacool or any supplier to allow me to convert the Res to the ful Single D5 product. The plexi is just £15, the full Single D5 product with all the components costs the same as my Res. This contradicts the whole point of this Modular Res if you can't actually make it modular with all the correct parts.
This is what the Single D5 repack looks like, you can see there is an extra middle part here that is sealed with O ring's on both sides:
This is my Dual pump repack, you can see it's just a solid accetal without the middle section:
So I've had enough with this stupid res and Alphacool's poor support for it. I'm going straight to Koolance. I have bought the Koolance RP-452X2 Dual 5.25in Reservoir. It's the best performing dual pump reservoir that works properly in series without all the alphacools problems (tons of flow and pump pressure!). The single pump is also as good as the other single pump bay reservoirs, it's also a fairly silent reservoir and the Rev 2.0 has a lot of improvements, especially the bleeding. It's also made out of solid acetal so it won't fall apart like the Alphacool can which is just glued all over the place. AND the whole thing can be taken apart for cleaning properly which my XSPC Twin D5 Dual Reservoir can't (I could have saved that res if I could clean the crap stuck in it but because it's glued plexi and cheap and full of nasty stuff built up in it that I couldn't get rid of, I had to abandon it).
Finally, the Koolance solves all the problems with space (It's more compact than the Alphacool Repack so it wont touch my Aqualis Tube Res which was a massive PITA to fit.
Also as you can see in this project log I'm not one to shy away from overkill
. This is a very very nice and high quality dual bay reservoir:
My plan is to have the AquaComputer Aqualis D5 top feed the Koolance (The more powerful one should be in front). Then play with the pump speed settings until its nice and quiet. Having 3 redundant pumps I can run them all quite low
The only problem I now have is the drain ports on my bottom basement rad's. The large 480 will have to have it's drain valve stick out in the rear of the case (Drill into the 2nd PSU blanking grate of the rear of the case. However, my 240 Rad is in front of my PSU so I can't feed the drain valve from it to the rear, and the port for it is at the front where the TJ07 curves at the bottom so I can't just drill a hole and stick in a bulkhead there!
I will post pics to show what I mean but I have been scratching my head for 2 weeks trying to decide how to do it...