The first thing that I see is that you want to be able to select or control the input from each individual skimmer. This allows you to shut one off if you want, as well as balance the flow between the two of them.
Other than that, nothing pops out, but I'm sure others may have other ideas,
Thanks for the feedback. Please check my understating as I have a different understanding of how the 3-way valves work:I assume this is a spill over spa, if so you may need a check valve in there to keep water from back draining through the returns when the pump is off. Also I don't see a way to have both pool return and spa return working at once. In addition I would home run all the pool returns and add individual cut off valves, that way if you ever do have an underground leak you can isolate it by plugging the the eyeball and shutting off the valve. This would allow you to postpone repair until the off season. It also makes locating suspected leaks a lot easier if you can systematically isolate different sections of plumbing.
p.s. why the vacuum port?
Is the maximum of 4 valves true for both the EasyTouch 4 and EayTouch 8?Foos,
While the two "red" valves would work, those types of valve tend to stick and have the handles break after a few years. And they can't be rebuilt, they have to be replaced. If I had a choice, I'd just add another Jandy style 3-way valve.
I noticed you added "actuators" to your original drawing, or I just missed that the first time around.... What automation system do you plan to use? If the EasyTouch, keep in mind that you can only control a maximum of 4 valves.
Sorry for the delay responding,Thanks for the feedback. Please check my understating as I have a different understanding of how the 3-way valves work:
1) This is a spill over spa, but when the pump is off the right most valve should also be off. I will be using Jandy 3-way valves and my understanding is they have an off position where water will not flow thru either outlet. There could be a failure situation where the system thinks it is on, but the pump is off (say it loses power) and in this case I could see where the spa might empty.
2) The 3-way valve can allow water to both outlets simultaneously and also adjust/restrict flow to an outlet. So the right most valve in pool only mode would be set to have say 90% flow to the outlet for the pool and 10% to the outlet for the spa.
3) In terms of home running the returns, I completely agree. My only concern is I've also heard it's best to use a loop around the pool for the returns so you achieve equal flow out all the returns. I believe these 2 things contradict themselves. I've also read you can change eyeball sizes to adjust the flow at each return. I'm thinking I home run the returns and then adjust the flow based on eyeball sizes...can someone confirm this is possible?
4) I threw in the vacuum port for a cleaner. I will likely buy a robot, so I may remove it.
That is definitely annoying having to change the cam points to adjust the flow/stops. Interesting, I found a Pentair IntelliValve that avoids opening it up...it has LEDs and let's you change the stops externally: http://www.pentairpool.com/products/automation-intellivalve-valve-actuator-478.htmSorry for the delay responding,
2, That is fine with a manually adjusted valve, but valve actuators move until they hit a stop, which can be a pre-set point, but then things can get complicated taking the actuators apart and moving stops, when say you may want to change that from 90/10 to 80/20 or 100/0 for whatever reason, a manifold style distribution may work out better here. Here is a link to the process of adjusting actuator cam stops How to Set the Cams on an Intermatic Pool Valve Actuator - INYOPools.com
I think it's just typical manufacturing variance plus frequency of use. I have one CVA (on the return side plumbing, I think) that's been going strong 3+ years now. I was thinking I might actuate my valve that controls the suction-side cleaner on the wall vacuum port, but I think it would actuate too frequently (and accelerate failure) AND I someday hope to own a robot and ditch the suction cleaner altogether.Matt, it does sound like you have had a bad experience with actuators. I guess I should be thankful I only have one (Hayward brand actuator), it is connected to my solar controller and typically switches positions multiple times per day year round (operating in freeze protection mode in the winter) it is going on 3.5 years in service.
Thanks. I was thinking I would have a "pool+spill over" mode where water is sucked from the pool (intake valve going to pool) and return valve going to BOTH pool and spa. Unfortunately the return valve actuator can only select 2 modes, so I can divert the return back to the pool or back to the spa, but can't split to both. It's not really needed, I just thought it would be nice and it seems like it might be more common to have a pool mode and spillover mode, but no pool+spill over.Foos,
The EasyTouch has a mode called "spillover". Basically sets the Intake valve to suck water from the pool and sets the Return valve to send the water to the Spa. Obviously, the Spa then fills up and overflows back into the pool.
You really don't need an additional valve to do it.
Blower is in the design (A.B. = Air Booster), so I agree. In terms of the skimmers, I've had a couple people with 1 skimmer tell me they wish they had 2.Why two skimmers? For this size, I would just do one and not worry to balance the system. I second the comment about adding a blower for the spa.