slief
RC Sponsor
I think there is a subtle difference to the face of the block as the older volute has a tab that hangs down below the face of it. It's hard to explain but we went through a similar situation with a customer who bought a newer block to replace his old block and there was a difference. As for a 1500/1350 block, i don't know but it will likely cause your impeller to spin at a high rate of speed and which will send more water and air into your skimmer. As i said, Royal Exclusiv didn't use an off the shelf block for the lower power pumps. They had some subtle changes made to speed of the pump to balance them out in certain skimmers. If the volute can be fitted to the 1500/1350 block, you may need to change your sump depth and tuning to accommodate the high flow that will be generated by the more powerful block and whether this skimmer will remain balanced is an unknown.
Have you tried taking your pump completely apart, removing the bearing at the back of the block in the magnet cavity and cleaning the bearing inside and out? Also cleaning the end of the impeller shaft? Any calcium buildup in the bearing will cause the pump to go into protection mode. It can also cause premature failure of the block. That is a key area of maintenance and often overlooked. It is however covered in the manual for the skimmer. Very often, customer think their block is dead but a good deep cleaning of the impeller and bearing will often fix the issue. All to often, people don't pay attention to that little bearing inside the pump.
Have you tried taking your pump completely apart, removing the bearing at the back of the block in the magnet cavity and cleaning the bearing inside and out? Also cleaning the end of the impeller shaft? Any calcium buildup in the bearing will cause the pump to go into protection mode. It can also cause premature failure of the block. That is a key area of maintenance and often overlooked. It is however covered in the manual for the skimmer. Very often, customer think their block is dead but a good deep cleaning of the impeller and bearing will often fix the issue. All to often, people don't pay attention to that little bearing inside the pump.
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