Can reeflo leak zinc or tin

[BradB]

I have a problem with Zinc, Tin, and until recently, copper, according to ati icp. I did 2 tests, the first was ro directly from the filter, which had no contamination. The 2nd I took from my reservoir, and it showed more zinc than the main tank and no other contaminants. This is puzzling, as the reservoir is a large plastic container with few possible sources of contamination. It does have a Reeflo Dart, which is used for mixing salt water and can be a backup for the main return (a gold dart) should it fail. Both reeflos are overdue for seal kits, so I wonder if this could be how metal is getting into my tank. Do you think this is possible? If so, other people need to be aware.

 

[lavoisier]

I've never heard that a Reeflo pump might cause metal contamination. If the seals fail it will leak noticeably. If there is any seepage you'll have heavy salt creep.

 

[BradB]

Yes, definitely have salt creep and know my pump is at risk, but never thought the tank would be at risk.

 

[motortrendz]

Bearings usually have zink and tin in them. If the seal.is bad and the bearing is getting salt in it it could be leaching back into the tank I think they're called bobbits or babbits. It's a zink alloy bearing coating. I dont know if it's used on the bearings in the reeflo, but its definitly used in automotive bearings.

 

[BradB]

The evidence is the ro setup. It does have PVC plumbing, an ato topoff, a few high quality gate valves, but nothing else besides the reeflo. Zinc is twice what it is in the main system.

 

[madweazl]

How long has the PVC been on the ATO res? It's known to leach zinc and I believe tin when it's fairly new. What are the levels shown on the ICP?

 

[BradB]

PVC has been attached almost 5 years.
There is no Tin in the RO water.
Zinc is 6.75 µg/l in the RO water and 3.48 in the tank.