Waaaay too much waste water -- new Spectrapure CSPDI 90 unit

flowerreef · 11/24/2020, 02:18 PM

Hi! Would appreciate any advice. I purchased a new CSPDI 90 Spectrapure RODI unit. Right now, I'm generating about 30 gallons of waste water (!!!!!!) to about 3 gallons of product water. Even though I'm using it for plants, it's a terrible waste. I understand the ratio is supposed to be 4:1. Any ideas for me? How do you work with the flow restrictor? Not sure how it all works.... Thanks in advance!

Vinny Kreyling · 11/24/2020, 05:53 PM

I would call them - sounds like something is hooked up wrong.
Flow restrictor is in the waste line & usually has to be cut in length to get the correct ratio.
Yours is WAYYYY OFF so let them help you.

moondoggy4 · 11/24/2020, 07:56 PM

I have a flow restrictor that you turn, if I have it open water flows out of the waste line fast, if I close it restricts the water so it comes slower for the wastewater. I made that mistake the first time using it.

outssider · 11/25/2020, 04:39 PM

I made an adjustable restrictor. I can dial it in exactly how i want

Yogre · 11/28/2020, 04:36 PM

Quote:

Originally Posted by outssider

I made an adjustable restrictor. I can dial it in exactly how i want

I did something similar except I used a 1/4” Quick Connect ball valve on my wastewater line. Took a little tweaking to get the ratio of waste to product right. Works great, lasts long time.

garygonzales · 11/29/2020, 10:43 AM

what does restricting the waste water do for how much waste comes out ...doesnt it just make the waste water run longer...so if i use up my two gallon storage tank..and the waste water runs for about two hours ..so now i restrict this wont it run for like 8 hours then???..im not getting this.......

Vinny Kreyling · 11/29/2020, 11:27 AM

Restricting puts pressure on the membrane forcing water through it.
Normally the ratio is 4 gallons of waste water to 1 gallon of product water.

11/24/2020, 02:18 PM	#1
flowerreef Registered Member Join Date: Dec 2014 Location: Venice, CA Posts: 13	Waaaay too much waste water -- new Spectrapure CSPDI 90 unit Hi! Would appreciate any advice. I purchased a new CSPDI 90 Spectrapure RODI unit. Right now, I'm generating about 30 gallons of waste water (!!!!!!) to about 3 gallons of product water. Even though I'm using it for plants, it's a terrible waste. I understand the ratio is supposed to be 4:1. Any ideas for me? How do you work with the flow restrictor? Not sure how it all works.... Thanks in advance!

11/24/2020, 05:53 PM	#2
Vinny Kreyling Registered Member Join Date: Nov 2002 Location: Miller Place, NY Posts: 7,206	I would call them - sounds like something is hooked up wrong. Flow restrictor is in the waste line & usually has to be cut in length to get the correct ratio. Yours is WAYYYY OFF so let them help you. __________________ 250 gallon mixed reef, 2 Reefbreeder's Photon V 2, Deepwater BLDC 12, DAS EX-3 Skimmer, MTC mini cal, 2-3/4" Sea Swirls, Aquacontroller & 6 Tunze pumps.

11/29/2020, 11:27 AM	#7
Vinny Kreyling Registered Member Join Date: Nov 2002 Location: Miller Place, NY Posts: 7,206	Restricting puts pressure on the membrane forcing water through it. Normally the ratio is 4 gallons of waste water to 1 gallon of product water. __________________ 250 gallon mixed reef, 2 Reefbreeder's Photon V 2, Deepwater BLDC 12, DAS EX-3 Skimmer, MTC mini cal, 2-3/4" Sea Swirls, Aquacontroller & 6 Tunze pumps.

11/24/2020, 07:56 PM	#3
moondoggy4 Registered Member Join Date: Jan 2007 Location: menifee So cal Posts: 11,042	I have a flow restrictor that you turn, if I have it open water flows out of the waste line fast, if I close it restricts the water so it comes slower for the wastewater. I made that mistake the first time using it.

11/29/2020, 10:43 AM	#6
garygonzales Registered Member Join Date: Feb 2006 Location: WEST ALLIS ,WI Posts: 922	what does restricting the waste water do for how much waste comes out ...doesnt it just make the waste water run longer...so if i use up my two gallon storage tank..and the waste water runs for about two hours ..so now i restrict this wont it run for like 8 hours then???..im not getting this.......