{"id":3693,"date":"2026-03-18T15:05:37","date_gmt":"2026-03-18T15:05:37","guid":{"rendered":"https:\/\/canalizadordelisboa.pt\/?page_id=3693"},"modified":"2026-03-18T15:05:37","modified_gmt":"2026-03-18T15:05:37","slug":"yellowish-water-in-taps-causes-and-solutions","status":"publish","type":"page","link":"https:\/\/canalizadordelisboa.pt\/en\/agua-amarelada-nas-torneiras-causas-e-solucao\/","title":{"rendered":"Yellow water in taps: causes and solutions"},"content":{"rendered":"

Yellowish water in taps is a relatively common problem and can cause concern. As well as looking unpleasant, it can indicate problems in the plumbing or the supply network. Identifying the correct cause is essential in order to apply the right solution.<\/p>\n

In this comprehensive guide, we explain the main causes of yellowish water, whether it is dangerous for your health and what to do to solve the problem. For quick diagnosis and an effective solution, the Lisbon plumber company<\/a> is the best solution for checking the pipe and eliminating the source of the problem.<\/p>\n

Main causes of yellow water<\/h2>\n

1. old pipes with rust<\/h3>\n

One of the most common causes. Old iron pipes oxidize over time, releasing rust particles that turn the water yellow.<\/p>\n

2. Interventions in the public network<\/h3>\n

Work or maintenance on the water network can loosen accumulated sediment in the pipes, causing a temporary change in color.<\/p>\n

3. Standing water in pipes<\/h3>\n

If the water is left standing for a long time (for example, after a vacation), it can accumulate residues and become colored when it circulates again.<\/p>\n

4. Limestone and sediment deposits<\/h3>\n

Internal accumulations can release particles into the water, altering its color and transparency.<\/p>\n

5. Water heater or storage tank problems<\/h3>\n

Old equipment can accumulate rust or sediment that ends up in the taps.<\/p>\n

Is yellow water dangerous?<\/h2>\n

It doesn't always represent an immediate danger, but it shouldn't be ignored. It may indicate the presence of metals or impurities. Avoid consumption until the cause has been identified.<\/p>\n

For official information on water quality, you can consult the ERSAR<\/a>.<\/p>\n

How to solve the problem<\/h2>\n

1. Let the water run<\/h3>\n

If it's a temporary problem, let the water run for a few minutes. If it returns to normal, it may have been caused by intervention in the network.<\/p>\n

2. Check whether the problem is general or localized<\/h3>\n