I'm still learning, pardon me...
In the bottom of my U3 I have two holes... one is suction (where I now plug in my pool vac.) and one is, I assume, the "center drain"...
1) Is it safe to assume that the other one (non-suction) is for the center drain?
2) I recently bought an automatic vacuum plate (to switch between robot and skimmer) and it says to plug that second hole (non-suction)...
Can anyone confirm and please explain exactly what that second hole does? And what size the plug is? It appears threaded (?) (but not sure)...
Any other information would be a huge help.
Thanks
Pete
In the bottom of my U3 I have two holes... one is suction (where I now plug in my pool vac.) and one is, I assume, the "center drain"...
1) Is it safe to assume that the other one (non-suction) is for the center drain?
2) I recently bought an automatic vacuum plate (to switch between robot and skimmer) and it says to plug that second hole (non-suction)...
Can anyone confirm and please explain exactly what that second hole does? And what size the plug is? It appears threaded (?) (but not sure)...
Any other information would be a huge help.
Thanks
Pete