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Replacement Pumps - Dynasty Renaissance ST5000

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DanielS:
Hi Everyone,

My wife and I have finally received our first Spa a Dynasty Renaissance ST5000 from 2006 (serial 24858). Yes it's a second hand unit, but for us it's our first real American Spa.  8) We had a Chineese spa that we got for free, and this sparked the idea of having a real Spa. Now I was able to get my hands on the Dynasty Renaissance for not to much, (around $ 1.200) including delivery and a full 3 month guaranty.  8)

Now getting the spa installed on our electric was a bit of a hassle but once I figured out how the jumpers work it set off pumping and heating. So for the past 3 weeks we have been using the spa and it’s been a delight. I’ve had some serious back issues lately so it’s just been a big joy. Offcourse as newbies we had our first PH and Chlorine issues. But then that was to be expected… but this has all been sorted now.

There are a couple of things that bother me that I know the seller has to sort out under guaranty, he has already committed to getting these issues resolved. (I do have to mention, they sell any kind of spa they can find, so they are not a registered dealer from Dynasty. We don’t have real Dealerships I believe like you have in the US.). Most of the stuff isn’t anything specials small things like replacing some rubber O-Rings and replacing 2 Diverter Valve Caps. The only thing that is a “Big Ticket” for me is the pumps.

When we got the spa up to temperature we discovered that one Waterfall did not work and neither do 2 of the foot massage jets. So the first thoughts were that a slide valve was closed but I can’t find any besides the original 4 that we’re meant to be there as far as I can tell. So the next search was broken diverter valves, also not the issue. Whats next? a bad pump? or maybe a worn out wet end?
Well there I bumped into the big issue, an original pump was replace with a LX LP 300 pump one speed with a 3 HP Wet End and the other pump is a Flo-Master XP2 model 2 speed HP 2.0-.25 pump. After having a through look at the pump I can’t figure out what the wet end is for HP the only number I could find was 912316 (05). So I contacted the seller and he has already agreed with replacing the pumps with the right ones… yeah… did he specify what right ones? No off coarse not…

So this is where I need some help with, I contacted Dynasty via Email about 2 weeks ago but the still have to get back to me. I contacted 2 other companies and they came back with 2 different solutions. Different brand pumps etc.. etc… but not the answer to my original question. So I figured lets ask the community.

The questions are.:

1.   Can anybody tell me what the original pumps where for this model and their specifications? If I check https://dynastypartsxpress.com/shop/spa-by-serial-number.aspx?term=24858#f=&p=1&s= I can't really get any specifications.

2.   What are the original Wet End specifications? (I believe they should be 5 HP, but not sure)

3.   If you would replace the pumps with what brand type / model would you replace them with?

I would really appreciate your support with this.

Thanks and regards out of the Netherlands!

BullFrogSpasMN:
Since I am a Dynasty Dealer I can give you some info....The spa shipped from Dynasty on 3/9/2005, the 'In-Service' date is 10/6/2006

Model: RENAISSANCE-50-ST
Color: Midnight Opal Shell w/ a Cedar Skirt

The Pump Dynasty recommends for replacement is: PUMP, EURO, 220V, 50HZ, FRANKLIN MOTOR, EXECUTIVE, 5.0 HP WE - Part #11276

That's all I can dig up at this point, hope it helps

EDIT: didn't notice you already found their parts site, my bad...I can't help with a similar replacement esp. on a Euro tub, no local dealers at all? or someone within shipping distance of you?

DanielS:
Thanks BullFrogSpasMN,

Unfortunatly we don't have real Dynasty Spa dealers around here in Europe. We have some dealerships for some European products, but they can't really help and to be honest the shops I did go to are just sales places with very little to no service at all.

I understand that your can't really give any advice based on the information of the website, the pump has very little to no details. Except that I think it states that the Wet End should be 5 HP or am I reading this incorrectly?

The other thing is, that when you click on the part, it says it's Interchange: 3F21050-1991 well giving this a go with Google does give me some more information. I then find the first post https://ecommerce.coastspas.com/ecommerce/product/3r21050-195x/euro-pump-35hp-black-end well this is a 3,5HP pump.

But would a 3,5 HP pump be able to swing a 5HP wet end around for the desired flow? or is there any other way of finding out what the pump should be?

DanielS:
So I was doing some more research, and I bumped into the following website.

https://manualzz.com/doc/1251783/dynasty-spas-2006-owner-s-manual and on page 35 it mentions that the Renaissance ST 5000 should have 3 Waterway 5 HP pumps. Well... I know that I don't have 3 pumps, only 2 but this would mean that I need both pumps replace with a 2 Speed Waterway pumps at 5 HP, with a corresponding Wet End.

Any suggestions on what brand pumps that would be suitable replacements for this? I don't know if we can get the Waterway pumps here in the Netherlands, so before the repair dude arrives I can say I will accept Waterway and brand X with these specifications.

Hottubguy:
Need to look at the total amp draw on the pumps versus what they claim the horsepower would be.  Try to match it up with something close as far as what the amp draw is now

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