My existing filter pump burned out a couple of weeks ago, and I am going to buy either an IntelliFlo 4x160 or an Ikeric Dyna-Miser VS150 tomorrow. The IntelliFlo is undoubtedly more efficient on the motor side than the Ikeric, but the Ikeric uses a very common motor, unlike the IntelliFlo. The only thing I don't like about the Ikeric is that the motor is ODP (open drip proof) as compared to the IntelliFlo being TEFC (totally enclosed, fan-cooled), but my existing ODP motor lasted in the outdoors and the rain and filter drainings for 11 years. The final decision will come down to relative price.
The title above refers to professional installation methods for the pump, but I think I am looking for "better than professional" installation tips since the "professionals" who installed the replacement pump 11 years ago never bothered to fasten the motor to the concrete equipment pad. The pump merely sits there and is "held" in place only by the inlet and outlet PVC piping.
What is the best way to install the new pump on the equipment pad? Should I install a rubber base under the pump? Should I be bolting the pump to the equipment pad?
Also, I am pretty sure that the IntelliFlo (which uses a WhisperFlo wet-end) and the Ikeric (which now uses a Hayward TriStar wet-end) will not match the piping for the existing Hayward Super II pump. Any tips for redoing the piping, other than installing unions? I am familiar with dry-fitting the piping before gluing, but it seems that after gluing that the fittings never quite fit like they did during the dry-fitting. How do the professionals handle retrofit plumbing jobs where the final piping dimensions must match up perfectly with existing equipment and existing piping?
Thanks for any thoughts, ideas, criticisms, etc.