How to clean off Surin kitchen water goo?

Stargazer

Surin Legend
I’m trying to help my hard-working Thai wife by cleaning the kitchen. The stainless steel counters and sink in particular are accumulating kind of gooey deposits that are hard to clean off. We use well water, so hardness (calcium) seems likely. When I lived in Hawaii, silica was in the water, and was worse, very hard to clean off.
Anyone know the best, least nasty cleaning agents that work here? We have a septic tank, so don’t want to poison the good bacteria in it.
 
I’m trying to help my hard-working Thai wife by cleaning the kitchen. The stainless steel counters and sink in particular are accumulating kind of gooey deposits that are hard to clean off. We use well water, so hardness (calcium) seems likely. When I lived in Hawaii, silica was in the water, and was worse, very hard to clean off.
Anyone know the best, least nasty cleaning agents that work here? We have a septic tank, so don’t want to poison the good bacteria in it.
Try a strong brew of bicarbonate soada and water.
 
Try a strong brew of bicarbonate soada and water.
I’ll try that. Calcium can be removed with acid such as vinegar. I think the soda is an alkali instead. Might work. If it’s silica I’m out of luck, nothing removes it. I wonder if (the way my wife cooks) it could be oil/fat. I’m trying to get her to switch away from pork and such to my preferred USA diet heavy on vegetables, light on meat and oil, as she just got her blood tested and has a cholesterol problem. She’s a slender 50kg, high metabolism, but does love pork fat and lab mo’o
 
By chance, I cleaned my sink this morning, using Cif cream as usual when it looks a bit grungy.
Here's the "after" shot:
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The sink is now 11 years old, and is in daily use. We use town water, which does leave a residue so I make sure I dry the surface using kitchen roll after rinsing it clean. The surface is not treated gently - I abuse it with paint, thinners, various glues when cleaning the tools used, and anything else that happens to be spilt on it.

1736999930447.png
 
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