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Does the hot spot relay come with one (Circulation Pump)? The Relay does not come with an Ozanator (or equivalent) like most other brands have standard. It is a $450 upgrade. This all makes my brain hurt.
I wouldn't agree with that. What kind of circ pump are you using that does 40 gpm as most I know of do between 6-15gpm? I have seen lots of people replacing those pumps quite often while most 2 speed spa pumps last over 8-10 years. I think circ pumps work fine but I wouldn't base my purchase on that. There are 2 different ways to achieve the same end result. Marquis are known to be one of the leaders in energy efficiency yet don't use a circ pump so that argument doesn't hold really hold up. If you set a marquis to run for 2 hours per day at 80 gpm then that's 9600 gallons whereas if you set a circ pump drawing 15 gpm for 8 hours then you get 7200 gallons. On low speed the mp-160 pump draws about 3 amps and you said your circ pump draws 1.5 amps so again I don't see any cost difference. A circ pump will be a little quieter but you can't really hear the marquis when they are in circulating mode anyway
Quote from: Hottubguy on March 10, 2014, 06:44:56 pmI wouldn't agree with that. What kind of circ pump are you using that does 40 gpm as most I know of do between 6-15gpm? I have seen lots of people replacing those pumps quite often while most 2 speed spa pumps last over 8-10 years. I think circ pumps work fine but I wouldn't base my purchase on that. There are 2 different ways to achieve the same end result. Marquis are known to be one of the leaders in energy efficiency yet don't use a circ pump so that argument doesn't hold really hold up. If you set a marquis to run for 2 hours per day at 80 gpm then that's 9600 gallons whereas if you set a circ pump drawing 15 gpm for 8 hours then you get 7200 gallons. On low speed the mp-160 pump draws about 3 amps and you said your circ pump draws 1.5 amps so again I don't see any cost difference. A circ pump will be a little quieter but you can't really hear the marquis when they are in circulating mode anywayI agree with all of this. I'll also add that most circ pumps are in a closed loop. The water that is in all of the rest of the plumbing stays in the plumbing and is not filtered or sanitized with the rest. You can see this phenomenon in action when you turn on the jets and cooler water comes out of the initial blast. This water then needs to be reheated, filtered and sanitized. Some tubs have a purge cycle that turns the jets on to solve this though. Again, don't let a circ pump be a deciding factor in your purchase. There are positives and negatives, but they work fine with or without when done properly.No offense, but sometimes I read Ryan VSO's posts containing lots of partially correct information and cringe. I usually don't have time to reply to them. You say stuff with conviction, so it sounds good, but there are quite a few inaccuracies. Again, no offense buddy. Just putting that out there. I have given incorrect information before as well. Nobody is perfect.
Ryan I am not sure where your getting your numbers from, but looking at HotSpring tubs with circulation pumps, their current E5 circulaiton pump is rated at 6,000 gallons per day, which my math says is 4.16 gpm, they also claim that the E5 pump flows 20% more water than its predecessor. Which would tend to pump minimum flow somewhere under 4GPM.
The Hot Spring circulation pump is MOST DEFINATELY connected through the heater, I have replaced mine and the hose goes right from the circulation pump to the heater.
I think they work but aren't needed. The goal is to have a spa that is clean, sanitized and hot. Circ pumps work but so don't non circ pump tubs. I have sold both in the past but in my experience the first thing that usually needs to be replaced in a tub is the circ pump. So if you can have the same results without one then what is the need