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www.fondriest.com/.../parameters/water-quality/ph

A pH value below 2.5 will cause irreversible damage to skin and organ linings ¹⁴. Lower pH levels increase the risk of mobilized toxic metals that can be absorbed, even by humans, and levels above 8.0 cannot be effectively disinfected with chlorine, causing other indirect risks ¹⁴. In addition, pH levels outside of 6.5-9.5 can damage and ...

www.reference.com/science/causes-ph-levels-change-water-4b...

What Causes PH Levels to Change in Water? According to the Pennsylvania Department of Conservation and Natural Resources (DCNR), changes in water's pH levels are caused by the dumping of certain chemicals into water systems.

www.answers.com/Q/What_causes_pH_level_to_increase_in_lakes

Consumption of the acid in a solution will cause the pH levels to increase (e.g Acid reacting with a metal) . The solution can be absorbing ammonia from the air .

www.answers.com/Q/What_causes_pH_levels_to_increase

There are several ways to increase the pH: Adding a basic or alkali substance, e.g. NaOH, or a basic salt, e.g. CaCO3. Consumption of the acid in a solution will cause the pH levels to increase (e ...

www.wikihow.com/Raise-pH-in-Pool

How to Raise pH in Pool. Low pH levels in a pool can be caused by rainwater and other foreign particles getting into the water. Corrosion of metal accessories, burning of the nose and eyes, and itchy skin are signs of low pH levels in a...

www.rightdiagnosis.com/symptoms/blood_increased_ph/causes.htm

This section discusses 11 medical conditions causing Blood increased pH. A simple discussion of these causes with additional information is below. Causes of Blood increased pH: The following medical conditions are some of the possible causes of Blood increased pH. There are likely to be other possible causes, so ask your doctor about your symptoms.

www.aquariacentral.com/.../what-causes-ph-increase.119267

uncycled ammonia will increase the PH, yes.. but according to the measurements indicated at the beginning of this thread, there is no ammonia. it has ALL been cycled.. soo it probably isn't the cause. you aught to check the hardness of your water.. extremely soft water will sometimes change ph quickly.

www.rightdiagnosis.com/sym/blood_increased_ph.htm

Blood increased pH: Introduction. Blood increased pH: An increase in the pH acid balance of the blood. See detailed information below for a list of 11 causes of Blood increased pH, including diseases and drug side effect causes. » Review Causes of Blood increased pH: Causes Causes of Blood increased pH: The following medical conditions are some of the possible causes of Blood increased pH.

www.hunker.com/13416088/how-to-raise-ph-in-a-hot-tub

Water with a low pH level corrodes the hot tub's metal parts, heater and the seals. Low pH also causes skin irritation. Hot tub water with low pH has a high acidic level. Before raising the pH level, test and adjust the water's total alkalinity -- total alkalinity controls and holds the water's pH level.

www.firsttankguide.net/ph-troubleshooting.php

If the pH is changing in your fish tank, or if the pH is different in the fish tank than it is from the tap (or other water source), you will want to try to figure out why this is happening.Once you have figured out why your aquarium's pH is changing, then you will want to correct the cause so that the change is eliminated.