We just finished having our pool resurfaced and replaced all of our pool and spa coping and stone surrounding our elevated spa. We are still in the process of getting our water balanced using the pool company to perform the start up. Our spa pours into our pool when in pool mode, when we switched it to spa mode this weekend to cycle it the pump will not get a full prime... We have tried letting air out of the filter release but that doesn't work. We can switch back to pool mode and the pump self primes just fine and the spill over from spa starts back up. Any suggestions as to what the problem could be? They will be back out again today and we intend to tell them about this problem but I thought I would try to get ahead of it by getting some input from you guys.