Hi all

I recently bought a hanna ph pen and was shocked to find that the ph of my tap water (Toh Yi area, upper bukit timah) is around 8.8. Would the members of this board kindly comment on whether this is usual? Is this new-water?

What is the tap water ph in your area?

regards

you are drinking it, so dun worry so much.
pH is never the same in all parts of Singapore.

Our water system runs on a network. If one area short of water, they will divert water from another area. The main thing to worry is not the pH but the chloramine. Soon all the water treatment plants in Singapore will be converting to chloramine. This was a result of a study on the water quality because of the SARS outbreak. Chloramine holds its effectiveness longer than chlorine. Many hobbists already kena entire stock wiped out after water change.

7.5 to 7.8 Woodlands.

Did u calibrate your pH pen?

Thanks. I callibrated the pen.

er, I'm not concerned with my drinking of the water. It's for the ranchu and the ph in my tank has not come down, around 8.8 afraid if the ammonia level goes up, so far has not exceeded 0.25 ppm

For the members of this board, please let me know the ph of your tap water if you have the info. Tks.

This post has been edited by ranchu8: Sat, 19 Mar 2005 9:54 am

You may wish to check this out:

http://www.RafflesGold.com/forums/index.php?showtopic=566

I bought a pH pen yesterday and tested the water (after calibration) which was around 7.7 - Pasir Ris.

Hi, I am a newbie....

pH 7.8 - 8.1 Bt Timah area, near Shelford Road.....

I get around 7.8 - 8.2

Thanks all for the help

Check the pH of your existing tank water before performing water change.If the tank pH is in the low 7s or lower and tap is 8.8 the consequences can be fatal.


Which brings me to a question to all bros:
Suppose the pH in my area is in the mid 7s and all of a sudden this week it reaches 8.8.That means my tank water is mid 7s and tap is near 9.How do I perform a water change?

Do I:
1)Lower the tap water using those "pH down" products before performing the change , OR
2)Do partial changes daily till the tank water is close to tap water OR
3) do a combination of (1) and (2)

But one thing for sure - I will call and f--k PUB first.

PUB will ask u, after a meal, what drink did you flush down your throat.

Our human body system able to take the extremes. Our tap water can change, and as long as human can consume, WHO guideline do not spell out a must for municipal drinking water standard to be suitable for fishes or dogs or birds.

From my understanding, it is true that fish can adapt to difference in ph if the change is gradual and there is negligible ammonia. The critical part is when there is a change from low ph to high ph because ammonia toxicity increases when the ph increases. So the greater danger is when tank water has low ph and tap water has high ph.

For cpiw 2002's query, I would do number 2 because there is less hassle and it would bring my tank water closer to my tap water, making life much easier. But as said, concern would be when ammonia in my tank is not 0.

Do any members have high ph like 8.8 in their tap water, like mine??

Edited my email above by inserting the following from a website: http://www.geocities.com/Tokyo/4468/faq_care.html

7. Should I try to adjust the pH of my water?

No. I have successfully kept goldfish in pH 6.5 and pH 8.5 water. Your life will be wretched unless you get your fish used to the natural pH of your water. The main problem is that pH adjustments tend initially not to be stable; the pH bounces back towards the original pH after adjustment, requiring multiple treatments. Goldfish should not be subjected to this.

Yo Cpiw stop being crude but bear in mind that municipal water are always monitored and regulated with regards to HUMAN consumption only and not calibrated with other animals in mind.So what is fit for human drinking does not mean it is fit for fish rearing and thus do not call PUB for this grievance!
This bring me to the topic on water purifiers and its effect on aquatic keeping.The water purifiers are to me a misnomer .Human water purifiers in the market boast of the likes of activated charcoals,resins and even REDOX incorporation to generate what is deemed healthy water but these can have detrimental effects on fish keeping as such may deplete or interfere with ion exchanges with resultant fluctuation of the biochemical profile of the water.Maybe I'll try to write something on this in the near future....

regards

goldrush