Generally it is good but nobody can give you a definitive answer for this.
I have used the following water test kit to ensure dinking water quality with great success. IMHO - it is worth the $25 for peace of mind.
https://www.amazon.com/dp/B00028PDO8?ref=ppx_pop_mob_ap_share
This kit includes a lead test strip, which was my main concern.
Good idea, I'll test it out when I have made a clean batch again. I've been looking into buying those water test strips as well, but the ones I've found are mostly for pools, and I'm not sure they will actually test for microplastics/resin chemicals?
Maybe something like this? https://www.amazon.co.uk/Watersafe-All-One-Well-Water/dp/B00028PDO8/ref=sr\_1\_3?keywords=water+test+kit&qid=1659799758&sprefix=water+test+%2Caps%2C71&sr=8-3
If you are actually worried about something in your water you can buy a test kit like this one on amazon or if that isnt good enough you can most likely send a sample to your local university for a full lab test.
Is the house on a well or city water?
You can buy a test kit or call around to local labs to see how much they charge.
Good chance your source of water doesn't contain lead, but it could. Most lead in water comes from the pipes in your house. Lead pipes are rare and most comes the solder on copper pipes.
If your run your water a couple of minutes then it will flush the water that has leached lead from your plumbing. The longer the water sits in your pipes the more lead it picks up.
The test should have you flush your faucet then let it sit for at least 8-12 hours. This would tell you how much lead was picked up. If you get a high reading then you go to the source and flush really good and immediately take a sample. This will tell you if you have lead in the water going into your house.
You could probably ask the building management about the pipes and/or water softener, or just pick up a water testing kit from amazon or the hardware store that test for heavy metals and see if anything is out of sorts. 40 years ago it was still common to use lead solder and plumbing fixtures.
These test look for different stuff than the aquarium specific test kits, you might find your answers there :-/
I think you can also get reports from the water company with the contents of your tap water, but the stuff coming out of YOUR faucet specifically could differ.
There are some pretty cheap in home RO units you could consider if that turned out to be the problem, or if its something in unsafe for people ranges, your building management may be obligated to fix it for you.
https://www.amazon.co.uk/dp/B00028PDO8/ref=cm_sw_r_apa_i_cWugFb23CJ2JR
Water testing kit for less than £30
TDS meters are cheap and usable for years. But really don't tell you much about how "safe" water is.
There are 'consumable' type kits for bacteria
And chemicals
Of course getting in VN may be a challenge.
Leaking pipes or bad tanks might mean that one end of a city has 'clean' water and another side dirty. So best bet is to test your own tap.
https://www.amazon.co.uk/Watersafe-All-One-Well-Water/dp/B00028PDO8
Something like this. You simply dip the swabs in water and they change colour if they detect contaminants
They sell well water test kits: https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.amazon.com/Watersafe-WS425W-Well-Water-Test/dp/B00028PDO8&ved=2ahUKEwjkyfG03ozaAhUN2FMKHaSSChQQFjAAegQICBAB&usg=AOvVaw2OVUM6ZzyQdUexi6PPZP6z
This can give you an idea. But, if you want to know for sure have a proper test run by a pro. Your county probably has a water quality department and can direct you to a lab that can do the work, or they might do it. There are federal grants for free well testing that the counties use to test private wells, so your test may be free.
You can filter out lead with a reverse osmosis system. We have one in the kitchen that is used for cooking and drinking. Bathing, cleaning, washing is all through the softened water and your lead exposure should be minimal through those sources.
As far as piping goes, look at what's running from your well to your pressure tank, and then through the house. It's quite possible that it's been upgraded over time to pvc/copper. There may be lead in the folder for the copper pipes, but that would be very minimal exposure as well.
Sure you could get something like this off Amazon. home depot and Lowes likely sell something similar. And it will not be near as accurate as a lab it will be close enough for your purposes. I would buy 2 kits. Test one as directed then test again after letting the water run constantly for 20 minutes. If the normal test detects Iron and the 20 minute flush does not it is likely something in the well or your lines. If they both test high it is likely the water.
I would skip the DIY. For the most accurate results NC Health Department http://epi.publichealth.nc.gov/oee/wellwater/howtotest.html
or Pace https://www.pacelabs.com/about-us/locations/asheville-nc.html