How to Plumb in a Jandy VS FloPro 1.0 HP Variable Speed -Tips

September 23, 2016

In this article I go over plumbing in a Jandy VS FloPro Variable Speed pump. Plumbing in a pump may seem daunting but it is actually quite easy. This particular install is in a very tight equipment area and is one of the more difficult plumbing jobs you will encounter.

To see a step by step plumbing installation, including removing the old pump watch this video:

A disclaimer here, most manufacturers including Jandy will void the manufacturers' warranty if the equipment is installed by the homeowner and not by a pool service professional. Pentair and Hayward have the same policies as well. I don't agree with it but it is what it is. Chances are

you will never need to use the warranty anyway, but be aware of this policy before you do this yourself. So this video is geared towards the pool professional and use this as a guide.

The first thing to note is that the FloPro is designed for 2” plumbing. If you have 1.5” plumbing you will just need reducers at both unions and use all 1.5”couplings and elbows as well as PVC pipes. Not a big deal really. If you have 2” PVC pipes you are good to go.

The base that comes with the FloPro makes it one of the easiest VS pumps to install. It will match up the FloPro perfectly with the inlet pipe so if you are on a cement pad this is ideal. The outlet will line up also in some cases, but in this job I wanted to move the pump back so I could easily access the panel in back to wire the pump. So you may need little plumbing or extensive re-plumbing depending on your set up.

A bit on PVC Cement and Primer. Primer is a good idea to help make the fittings easy as it melts the pvc slightly and also helps with the PVC Cement bond. I the Pool Heavy Grey PVC Cement as it dries slower allowing for more time to play around with the fittings. You will find the blue standard PVC Cement dries very rapidly giving you no room for error. If your new to plumbing use the Pool Heavy PVC Cement.

I use a liberal amount of PVC Cement and apply it to the fitting as well as the pipe, if you try to get fancy and use too little chances are the PVC will start to leak on start up. So I recommend to be very generous with the PVC Cement so that you are not re-plumbing it a day later.

With the included unions attaching the pump to your PVC fittings is very easy. Just be sure to measure exactly – go 1 1/2” into the coupling or elbow and 1 1/2” into the unions on the pump. This will give you a nice snug fit. When attaching the unions there is an o-ring inside so make sure the threads are lined up perfectly, otherwise air will get in and the pump will not have full power and may have trouble priming. If you notice this after turning it on, undo the unions and align them again for a tighter fit.

I like to let the PVC Cement dry for 24 hours. Overkill in most cases but this will assure that you don't start the pump too soon and thus ruin the bond. This is the best and most cautious way in my opinion.

Just be sure you have enough PVC pipe and fittings before you start the job. I always like to have at least double of what I need in case I run into a problem. It is really pretty easy once you do it and if done correctly there will be no chance for any leaks.

Here is the PVC Cement and Primer I recommend you use: