View Full Version : ASO Instalation or Video

01/28/2015, 12:41 AM
I just got my SpectraPure® Standard 90gpd CSPDI™ 4-Stage RO/DI System

I plan to hooking up the RO water to a 3gal pressure tank for drinking and using DI for the tank.

It would sure be nice if there was some good images or a video so I can figure out how to correctly set up the Automatic Shut Off (ASO).

Anyone have some images or know of a video?

SpectraPure please advise.

01/28/2015, 07:42 AM
See page 6 of this manual:


It's an excellent diagram for what you want to do.

Support at SpectraPure

01/28/2015, 09:00 AM
See page 6 of this manual:


It's an excellent diagram for what you want to do.

Support at SpectraPure
Do you have a color photo image of the unit I have, showing how it's done?

I have reviewed this pdf you sent and it's going to take a lot of studying as it doesn't look like my unit. A black and white sideways drawing really does not match up to the unit and makes the installation hard.

Thank you in advance for your help!

01/28/2015, 09:11 AM
It is a schematic and indicative of the connections needed. We don't have any photos as you are describing. The only difference is that the diagram shows two di stages and you only have one. Otherwise, it's been our go-to diagram for years.

Here's a hint: locate the black line from the carbon going to the membrane. Near the membrane, cut the black line and reconnect with the IN and OUT ports of the ASO valve. Now that the ASO is positioned, cut the blue line leaving the membrane and install the Check Valve, arrow pointing downstream. Use a length of blue tubing to connect the other end of the Check Valve to EITHER of the remained ports on the ASO valve. All that's left is to connect the fourth port of the ASO to the new tee and locate it next to the DI stage. Connect the tee to the DI stage and to the second Check Valve going to the tank.


01/28/2015, 11:27 AM
Here's the image from the directions.
2nd Image

01/28/2015, 11:33 AM
That includes the air-gap faucet, but other wise is as I described earlier.

What directions are you referring to?

Support at SpectraPure

01/28/2015, 11:43 AM
I see what your talking about.
Question the tee that's existing by the DI stage that has some wire coming out of one end of the tee, do I need to put a tee in front of this (add a tee right after the ASO but in front of this existing tee with the red wire?

01/28/2015, 11:53 AM
Before or after, it doesn't matter.


01/28/2015, 03:56 PM
[QUOTE=Use a length of blue tubing to connect the other end of the Check Valve to EITHER of the remained ports on the ASO valve.

So the blue line can go into either IN or OUT (non etched side) of the ASO correct?:spin1:

01/28/2015, 04:04 PM
There is one-and-only-one IN port that connects to the carbon . One-and-only-one OUT port that connects to the membrane. The other two ports don't care which way the water flows.

Don't know what you mean by non-etched.


01/28/2015, 04:08 PM
The ASO has one side that's etched IN and OUT which is important I understand but what about the other side of the ASO Valve does it matter if the blue tube is connected to the Non-Etched side of the ASO on the IN rather than the OUT---your sketch shows the blue tube coming from the RO Membrane on the non-etched out side.

Ok you said it does not matter----So the blue line can go into either IN or OUT (non etched side) of the ASO correct?

01/28/2015, 04:49 PM

01/29/2015, 02:59 PM
My old Culligan was at 40on the TDS meter and I'm replacing it.

How long should the water need to cycle on my new SpectaPure before the RO water test low?
I don't have the DI cartridge in currently.

It's been running for 1:30 hrs.
The tap water is 460
The units RO TDS meter shows 35 IN but when I test it with my TDS meter it's coming out of the tube 57.

01/29/2015, 06:22 PM
I've been running water through the SpectraPure for hours still at 57 on my TDS hand held.
I still have water from my old RO system and TDS shows 40.


01/30/2015, 12:16 AM
Hello. I will be happy to help you.

Some good sources of critical information before we start:

Our warranty information can be found at http://spectrapure.com/Warranty-info

Return information and the process as a whole: https://spectrapure.com/index.php?route=account/return/insert

Much information can be found for in your manual which you can download here: http://spectrapure.com/Product-Manuals

Many questions are answered here and it may help you immediately: http://spectrapure.com/technical-info

And many in depth discussions on issues and performance can be found here: http://spectrapure.com/frequently-asked-questions

We want to help you and give you as much information as we can to help you be successful.

Now onward, I need to get some background information from you that will help me assist you and get your system or problem fixed as fast as possible.

1) What model of system? (component) (from the sticker) do you have?
2) What is the date (if available) on the sticker for the system/item?
3) Did you purchase this from Spectrapure (a), or from a retailer or other source(b)?
a. Can you provide a copy of and tell me the date on our invoice and the invoice number/proof of purchase?
b. Can you provide a copy and tell me the date on the invoice and the invoice number or proof of purchase?
4) What is your pressure reading on the gage on the system during operation?

Please refer to your system manual:
5) What color flow restrictor does your system have installed? Red or green?
6) What amount of product water is produced in 1 minute? We prefer this in milliliters.
7) What amount of waste water is produced in 1 minute? (again, in milliters).

Other critical information for us to help you. You may need to have a copy of your local water report on hand:
8) What is your water temperature?
9) What is your water pressure?
10) What is the pH of the source water?
11) What is the kH of the source water?
12) What is the gH of the the source water?
13) Are you on a well or on a city source?
14) When making DO water, do you make large batches, 5 gallons, 50 gallons, or drinking water? Or as needed small batches? etc etc etc
15) Does the waste water etc etc
16) How many gallons of product water do you make each month?
17) When was your last pre filter change?
18) When was your last membrane change?
19) When was your last DI change?
20) Can you please send us a copy of your water report, this can very helpful!