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A heater for that tub will run ya about $200 installed. Less, actually, but let's keep the numbers nice and round.If the pump gives you a problem, it will most likely be a seal that needs to be replaced, not the motor. That seal job should be $100 tops.If a motor does go bad, you're lookin' at $300 installed.The shell warranty on that tub was only a year or two anyway, and it's a fiberglass-backed acrylic - good history of long life.So - be sure you're getting enough of a discount, allow for one or two of the above repairs, and you'll be fine. If, in fact, you don't need those repairs, you'll be better than fine.
Your prices are half that of the dealer in my area. And they wont usually replace a pump seal. They will replace the entire pump. They charge close to $500, NOT installed. It is a good idea to ask you dealer about the prices of these items and what they charge in labor and other service fees before you buy a product with no warrantee. Of course, if you do not get the prices in writing you should not be suprised if they go up when something breaks.
Let me guess - you live near a large body of water, and your dealer has a magnificent sailboat. Right?
I think you could easily get these jobs done for the price I mention. As to replacing the whole pump over a $10 part - yes, sometimes companies will do that under the warranty. But this tub has no warranty, so call in a good repair guy and have him put in a new seal, and a couple of O-rings and you're good to go. All of this is only going to matter if the tub has problems - most don't.
Why? The element in a HotSpot is a standard, off-the shelf flow-through element. Call spa parts express, or go to PoolandSpa.com, SpaBabe.com, Horizon spa parts, or any wholesale supply house. This tub doesn't have the standard HotSpring stuff in it - it's a Gecko pack and heater. The pump takes a regular seal and some o-rings. Standard stuff.