Originally Posted by Jack1966
And it is the pressure gage Thai is not working, the flow meter is working fine reading around 7
The reading I got from the sea water
was 750 x10 ppm
You'll want to get a new pressure guage to be sure. It is an important feature on your unit both for trouble shooting potential issues with your system and to be assured your system is working up to specs. I'm not a big fan of using the TDS meter to measure the water you are floating in for salinity. The error rate is pretty wide for many reasons with the inexpensive hand held units. They generally work just fine for testing product water after it's been run through a salt water
membrane. With that said, I know Harbor Towne Marina very well and have done a lot of work there. Florida
is different than a lot of places when it comes to testing the salinity of the water. Where Harbor Towne is located it sits over part of the Florida
aquifer and several water management canals feed this area from surrounding lakes and rivers. So it would not be totally unlikely that your TDS readings are around 7,500 in this area. It seems even a bit low for that area but considering a hand held TDS meter I'll buy it. But the real test is just offshore
where, unlike the Pacific, salinity can be in the 35K-37K+ PPM range. This accounts for why ShaktisBoy, who is just a few miles from you, has a different TDS reading (200PPM is a very good reading here in saltier water.) The southern east coast
and the offshore
Atlantic waters for the most part have the highest salinity readings in the world. Though this isn't extremely important to know for the average crusier, it explains a lot of misconceptions of why your watermaker
has higher TDS readings here on the east coast
and your buddy's watermaker on the other coast has better TDS readings. It means nothing as to the condition or quality of your watermaker. To truely understand your particular watermakers condition you need that new pressure gauge, a flow test, (for both product alone and brine and product together) and a good offshore product TDS reading.
If all is good with your unit and the reading of both 7,500 surrounding water is fairly accurate and the product PPM is 60 I'd expect your system to be making product water offshore in the 280-350PPM range which for a system that has sat for five years is very good.
Did I mention...get the pressure gauge?