Is there a difference in the type aerator you need for raising PH vs one for lowering water temperature? I've searched and found aerators that spray from above the water and those that spray from under the water. I ask because I need to do both. With solar cover on the pool is up to 95 degrees, sometimes hotter. And I also need to lower TA from 190 to add borates (hoping it will help with bees and more sparkle never hurts). So can I accomplish both at once or do I need different aerators? BTW I, too, have sparklypoolitis! BBB and those of you providing the advice/wisdom on this site are AWESOME!!! Thank you.