I was very excited to get the premium version of this fountain. However the design, fitment, and system were not well thought out and required several workarounds to make it work:

- Upon receipt, instructions were missing for the funnel accessory.
- The funnel accessory was missing slots for the connecting tabs to register into so I had to cut them myself. This is a manufacturing step that was accidentally left out. The adapter attaching the funnel to the pipe shaft was 3D printed from a low resolution FDM machine and I had to remove bits of 3D printed support material to prevent them from falling into my glaze. Also, the tolerances of the female thread on this adapter are too tight and I'm only able to screw it onto the shaft by half a turn, so it does not feel secure.

- The top of the funnel adapter has a female thread, which is incompatible with a female thread on the provided nozzle. This nozzle is necessary to direct glaze uniformly to the center of your pot, so I had to duct tape it to the top of the funnel adapter in order to use both the nozzle and funnel at the same time.

- Stability: the pump and vertical pipe is top heavy. There are two suction cups beneath the pump that are supposed to suction to the bottom of your glaze bucket. I suspect this was not tested rigorously, as they detached even after firmly pressing the pump to the floor. The cable connecting the pump to the foot pedal also bends when you press down on the foot pedal, this causes the suction cups on the bottom of the pump to detach as well - this resulted in a bunch of botched glazings as the funnel and unit fell over as I actuated the foot pump. I had to manually fashion a bracket to hold the shaft in place out of a coat hanger that grabbed three edges of the bucket. I do not know how this product was given sign off for production because issues like these are easily identifiable during the development phase with product testing.

I have reached out to the team several times over email and have not heard back.

[UPDATE]:
Diamond Core responded to me after several attempts at contacting them and writing this review. They issued a full refund (which I did not request) as well as provided a replacement funnel kit. The funnel adapter now fits properly on the vertical tube, and the replacement funnel now has the slots required for snapping together. They provided a missing part that allows the nozzle to be used with the funnel.

However, I still need to use my makeshift coat hanger tri-bracket in order to prevent the unit from falling over during use as the suction cups are not effective. Actuating the foot pedal causes the connecting cable to create tension on the fountain and this "push/pull" force of the cable breaks the suction cups loose during a foot press. That said, the quality of the glazing is excellent once the stability workaround has been addressed. Since the ability to remain stable during normal operation is central to this product so I'd like to assert that the kit still needs user-intervention/fabrication in order to work properly. If the kit arrived with a bracket to keep the unit stable, My rating would have been 4-5 stars.

[UPDATE]:
Diamond Core Tools sent me an FDM 3D printed stem bracket they developed. Injection molded parts would be ideal, but I understand this is a low-volume product. It's purpose is to hold the stem securely due to the insecure suction cups on the bottom of the pump. I suspect that users will want to position the stem as central to the bucket as possible, but the pump itself prevents this from being perfectly centered. The length of this bracket is slightly short and requires additional offset of the stem towards the brim. This may be suboptimal for people who have not purchased the deluxe cone and want to have a more tidy drip back into the bucket. While this is a worthy attempt at addressing the issue, my main criticisms of this stem holder are:

- The stem is still able to wobble perpendicular to the bracket. My coat hanger tri- bracket is still more secure so I will still be using that.

- The short length of the Diamond core stem bracket positions to stem a bit further away from center than it could have been.

The glaze fountain has cut our glazing and clean-up time in half! we love it!