For anyone who's followed the story so far: Homeowner - 0, First American Home Warranty Co - 1
They're denying my claim because the old filter was repaired "improperly" (ie. epoxy) by the previous homeowner, instead of having the (obsolete, not available) part replaced. On the plus side, I get to put in whatever filter I want. On the negative, I also have to pay for it.
I've studied the different types and I'm leaning toward sand or DE - more towards sand. From what I've read, it looks like there's less maintenance with sand and no hazmat DE.
Pool size ~13000 gal. I have a whisperflo 1 1/2 hp pump. I've used the hayward pump/filter sizing worksheet http://www.haywardnet.com/pdfs/Pump_filter_sizing.pdf to come up with a 22-27 GPM turnover rate (8-10 hour). Based on the worksheet, I have about 36 ft of head. In this post, http://troublefreepool.com/viewtopic.php?t=2581, Dave suggested using 45 ft of head to calculate pump GPM.
Based on Pentair's pump curves for this model 45 ft of head = 118-120 GPM and w/ 36 ft of head = 130 gpm
That seems grossly oversized for this pool, but I understand the $$$ incentive of pool stores to "upsell" stuff.
In that same post Dave says:
When I look at the technical specifications for Hayward Sand Filters (just an example, haven't settled on brand or type) it seems like I'd have to get a HUGE filter.
Am I misunderstanding pump/filter sizing guidelines? Do I need a smaller pump?
What filter types (cart, sand, DE) do you folks like (and why)?
What brand & model would you recommend?
Thanks.
They're denying my claim because the old filter was repaired "improperly" (ie. epoxy) by the previous homeowner, instead of having the (obsolete, not available) part replaced. On the plus side, I get to put in whatever filter I want. On the negative, I also have to pay for it.
I've studied the different types and I'm leaning toward sand or DE - more towards sand. From what I've read, it looks like there's less maintenance with sand and no hazmat DE.
Pool size ~13000 gal. I have a whisperflo 1 1/2 hp pump. I've used the hayward pump/filter sizing worksheet http://www.haywardnet.com/pdfs/Pump_filter_sizing.pdf to come up with a 22-27 GPM turnover rate (8-10 hour). Based on the worksheet, I have about 36 ft of head. In this post, http://troublefreepool.com/viewtopic.php?t=2581, Dave suggested using 45 ft of head to calculate pump GPM.
Based on Pentair's pump curves for this model 45 ft of head = 118-120 GPM and w/ 36 ft of head = 130 gpm
That seems grossly oversized for this pool, but I understand the $$$ incentive of pool stores to "upsell" stuff.
In that same post Dave says:
Your filter size should be in relations to your pump's capacity to push your water. If your pump is rated somewhere around 50-70gpm, a filter size about 20% bigger than that would be okay. Larger filters are generally better. For sure, do not get one rated less than your pump.
When I look at the technical specifications for Hayward Sand Filters (just an example, haven't settled on brand or type) it seems like I'd have to get a HUGE filter.
Am I misunderstanding pump/filter sizing guidelines? Do I need a smaller pump?
What filter types (cart, sand, DE) do you folks like (and why)?
What brand & model would you recommend?
Thanks.