eric
Full Member
Posts: 124
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Post by eric on Oct 10, 2022 16:21:55 GMT
Good day all,
I am wondering if you have any experience with using different cleaning agents from different companies in the name of cost savings?
We have a biolab 4400m from marcor/cantel/evoqua........ and i have always used minnclean ac and tf and minncare cold sterilant. I was questioning if other companies (RPC Rabrenco, MSI, etc...) cleaners/disinfectants are able to be used or if i should be continuing to use the originals?
Thank you for your time and input.
Eric
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Post by stuff on Oct 10, 2022 19:19:09 GMT
I tried some hi/low cleaners that come in a 5 gallon bucket, because a coworker said it was cheaper and worked. I used it once, the 2nd time i go to use it, there were chunks like egg drop soup up in it. Cost savings be damned, I have stuck to Ac/tf/and Minncare HD
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Post by briancanufixthis on Feb 23, 2023 20:27:08 GMT
Liquiclean 103 and ROclear Ro211 works for me..
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Post by dave74 on Mar 6, 2023 14:05:45 GMT
This could be another dialysis legend, but I heard a story about a biomed who used a powder cleaner on the RO. Somehow he fouled up and got the powder stuck on the membranes and couldn't get it to rinse off.
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Post by bcjammerx on Mar 19, 2023 12:29:31 GMT
This could be another dialysis legend, but I heard a story about a biomed who used a powder cleaner on the RO. Somehow he fouled up and got the powder stuck on the membranes and couldn't get it to rinse off. we use a powder cleaner...but you're supposed to mix it till completely dissolved with ro water and have the ro pull that in NOT just the powder, wonder if that's what they did (or didn't do)? Works like a charm though I hate mixing it...course I mix it right too. I'm always paranoid it won't be mixed just right though |
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Post by Chuck Weddle on Mar 19, 2023 12:59:15 GMT
Personally, despite what the manufacturers say, I don't believe in membrane cleaning. I think it shortens the life of the membranes.
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eric
Full Member
Posts: 124
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Post by eric on Mar 20, 2023 14:27:50 GMT
Personally, despite what the manufacturers say, I don't believe in membrane cleaning. I think it shortens the life of the membranes. So do you just disinfect monthly then? how long have you done that if yes and what have been your results? Thank you for your thoughts and time. |
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Post by Chuck Weddle on Mar 20, 2023 17:11:32 GMT
Personally, despite what the manufacturers say, I don't believe in membrane cleaning. I think it shortens the life of the membranes. So do you just disinfect monthly then? how long have you done that if yes and what have been your results? Thank you for your thoughts and time. Yes, just monthly disinfections with 1% PAA (Micro-X). Our RO's (Marcor/Biolab 4400's) range in age from 5-15 years old and are all on their original membranes. |
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Post by bcjammerx on Apr 1, 2023 3:35:28 GMT
Personally, despite what the manufacturers say, I don't believe in membrane cleaning. I think it shortens the life of the membranes. we HAVE to, output on a centurion (ameriwater) goes from over 2000ml to 500 in about a month, hd machines start giving water disturbed alarms if we don't. only thing that brings up the output is a low ph clean. our older ro's we used to run were the same. same with every place I've worked. only ever replaced 1-2 membranes conductivity and rejection rate always improve too. haven't actually seen it foul a membrane yet, have you? |
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Post by Chuck Weddle on Apr 1, 2023 8:46:44 GMT
Personally, despite what the manufacturers say, I don't believe in membrane cleaning. I think it shortens the life of the membranes. we HAVE to, output on a centurion (ameriwater) goes from over 2000ml to 500 in about a month, hd machines start giving water disturbed alarms if we don't. only thing that brings up the output is a low ph clean. our older ro's we used to run were the same. same with every place I've worked. only ever replaced 1-2 membranes conductivity and rejection rate always improve too. haven't actually seen it foul a membrane yet, have you? That sounds like you have a high SDI. Has it ever been tested? My experience with cleaning vs not cleaning is anecdotal. We (my company) used to take care of the water system for a nearby hospital facility. Prior to us, they were being taken care of by a water treatment vendor who did quarterly high/low pH cleanings. They were having to replace their membranes every 2-3 years because the conductivity would go high and % rejection would drop. We serviced them for 12 years with no cleanings and only replaced their membranes once just a few months after taking over them. |
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Post by bcjammerx on Apr 7, 2023 17:25:21 GMT
we HAVE to, output on a centurion (ameriwater) goes from over 2000ml to 500 in about a month, hd machines start giving water disturbed alarms if we don't. only thing that brings up the output is a low ph clean. our older ro's we used to run were the same. same with every place I've worked. only ever replaced 1-2 membranes conductivity and rejection rate always improve too. haven't actually seen it foul a membrane yet, have you? That sounds like you have a high SDI. Has it ever been tested? My experience with cleaning vs not cleaning is anecdotal. We (my company) used to take care of the water system for a nearby hospital facility. Prior to us, they were being taken care of by a water treatment vendor who did quarterly high/low pH cleanings. They were having to replace their membranes every 2-3 years because the conductivity would go high and % rejection would drop. We serviced them for 12 years with no cleanings and only replaced their membranes once just a few months after taking over them. oh yeah, our water is horrid |
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Post by dave74 on Apr 7, 2023 18:31:09 GMT
What do you have for pretreatment? Have you thought about making any changes?
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Post by bcjammerx on Apr 10, 2023 23:29:59 GMT
What do you have for pretreatment? Have you thought about making any changes? on the portables we have a .6cf (I think) carbon tank (18" tall, 10" wide) that goes to a 5mic 5" prefilter, then two 20" 1mic carbons. :\ used to change those carbons once a month and didn't NEED to, now we're changing them twice a month due to 20+ psi delta and low flow alarms. accidentally put a 1mic on the prefilter, was changing it in a couple days after the cleaning they go from 500 flow to over 2000 with just a low ph, lots of minerals-city water source is a river, may god have mercy on anyone who tries to swim in that thing XD |
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joey
Full Member
Posts: 245
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Post by joey on Apr 21, 2023 15:20:50 GMT
Chuck what do you use for pretreatment? 1 Microns?
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Post by Chuck Weddle on Apr 21, 2023 18:45:22 GMT
Chuck what do you use for pretreatment? 1 Microns? Nothing special, just a backwashable sand filter (not multimedia), softener, 2 carbons in series and a 5 micron prefilter on the RO's. We have one facility that also has a lignite carbon as a scavenger. |
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