I purchased a home built in 1997 recently and I am trying to replace all 14 pop ups on my pool, I was able to replace 13 of the 14 but I can not get the last broken one out of the pool. I have been using the special tool with the 3 spikes and my wife and I both tried turning the tool together and can't get it to budge and tried pulling it straight out in case it is already in the 'unlocked' position. As you can see, it is already broken as the middle is missing (attached picture). Any help will be appreciated, thanks in advance!