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Yes they are PVC and inert to saltwater.
Some things are cumulative and not removed by filtration so get more and more concentrated with time. Water changes keep the levels in check as well...
PVC Type II Gate Valves | U.S. Plastic Corp. More than sufficient for our needs $13 for slip and $23 for threaded versions. I still think you could...
Not sure where you are located but any good landscape supply store should have them much cheaper than that. They use lots of them in commercial...
Spears is probably the most common choice and very good quality.
Fulham Workhorse ballasts are dirt cheap and work excellent for PC bulbs. Another source is Hellolights.com, they even sell retro replacement kits...
Having ultimate control of your water quality is priceless. You can buy a very good reef quality RO/DI system for $125 and a handheld TDS meter for...
With the modified Stockman design it would be next to impossible for a snail or anything else to restrict the standpipe, its quiet as can be in my...
I have a Evolutions nano 425, Koralia K1 and a modded AC 110 HOB refugium in my 16G bowfront with a 3" Southdown DSB and wish I had more flow. I...
Marc has probably the best article on sumps for beginners here: Melevsreef.com | Acrylic Sumps & Refugiums I don't care for the bean either, why...
I posted a fix to the covers here and on other reef forums about a year or so ago that solves the problem by reinforcing the cover with a single thin...
Watch the needle valve closely. I have the MaxCap UHE system which also has a capillary tube AND needle valve and the valve can plug or need...
Did you take the time to measure your waste ratio when you bought the system then trim the flow restrictor according to the owners manual? It walks...
GFO and GFH are different names for the same thing. GFO is granular ferric oxide, it is supposed to be the dry form of the media. GFH is granular...
McMaster Carr has everything but you can probably find one locally if you have a good plumbing supply warehouse around. McMaster-Carr
Everything has an inherent risk. Its better than the Milwaukee pH controller it replaced and has been rock solid for about 3 years now, I'm not...
We need more details. Is it a drilled tank with a bulkhead installed? Is the bulkhead thread x thread or thread x slip or slip x slip? Was it...
With my Reefkeeper Lite I also control my calcium reactor based on readings from a pH probe, have moonlights on a lunar cycle and hev two Evolutions...
You were lucky then, the average rejection for an off the shelf membrane is more like 97%. Could be cation or anion depening upon the needs. They...
You can buy a different capillary tube restrictor and trim it to fit your conditions. Only $5. I am assuming you are saying you have color...
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