Feces, vomit or blood in a hotel pool: closing, treating and reopening

A fecal incident is stool, vomit or blood entering pool water. Clear the water, close the affected pool and any pool sharing its filter, remove the matter with a net or scoop, then hold the free chlorine level and contact time your written protocol sets. Türkiye's pool regulation sets no such procedure; the US CDC publishes a voluntary model code that does.

It is a July afternoon, the shallow end is full of children, and a parent waves at the lifeguard and points at the water. Everyone on shift looks at each other: nobody has been told who is allowed to close the pool, or what happens next. This article gives you that answer, and the rest of the fecal incident pool procedure: who closes, what happens in the first five minutes, which treatment values to adopt, what Turkish law does and does not say, how to test and record before reopening, and what to tell guests.

Who has the authority to close a hotel pool?#

One named person per shift, written down before the season starts: usually the duty manager, with the pool operator or technical service lead as the second name and a deputy for nights.

The CDC Model Aquatic Health Code, 5th edition (December 2024) (opens in a new tab) requires that at least one person on site is trained in contamination response while the facility is open. The authority therefore has to exist on every shift, not only in office hours. Decide in advance what a lifeguard may do alone: clear the water and block access, nothing more. Treatment and reopening belong to the named operator.

Put the name on the shift handover sheet, not in a folder in the technical office. The person on the deck at 15:00 on a Sunday is the one who needs it. Keep the front desk out of the decision: they will be asked when the pool reopens within minutes, and they should be reading the answer, not inventing it.

Under the Turkish regulation, operation is stopped when a microbiological sample fails the limits in Annex 3, and after a failed repeat chemical sample (Article 13). That is a test-result route, not an incident route, so it will not tell you what to do in the first minute. Ask your provincial health directorate in advance what it expects to be told after an incident and in what form; the regulation does not spell out an incident notification route.

What happens in the first five minutes?#

Clear the water, block access, note the time, and close every pool that shares the same recirculation system, including the children's pool if it is on the same filter.

Whistle everyone out and stop new entries. A person at the gate works; a sign on its own does not. The CDC model code closes the affected venue and any venue sharing the same recirculation system until remediation is complete, so walk the plant room and confirm which pools are on that loop before you reopen any of them.

Remove the material with a net, scoop or bucket and dispose of it in a sanitary way. An aquatic vacuum cleaner is only acceptable if the waste goes to a sanitary sewer and the equipment can be disinfected afterwards. Keep the recirculation and filtration running; draining is a last resort, not a reflex, and it creates its own problem, namely where the water may go.

Record the free chlorine and pH reading at the moment of closure, before anyone adds anything. That reading is what tells you how much treatment the water now needs. Write the time, the pool, the type of contamination and the name of the person who closed it: everything later in the day depends on this line.

Formed stool, diarrhea, vomit or blood: why does the response differ?#

The organism decides. Diarrheal stool can carry the parasite Cryptosporidium, which survives ordinary pool chlorine levels, so it gets a far higher concentration held for far longer than a formed stool.

A formed stool is treated as the mild case: a short, low-level chlorine hold. A diarrheal stool is the hard case, measured in hours rather than minutes. You cannot tell the two apart by looking. Ask the person or the parent one calm question away from other guests, because the answer changes a 25-minute closure into most of a day.

Vomit follows the formed-stool treatment in the CDC model code, but the practical work is wider: the pool deck, the loungers and the path to the nearest toilet all need attention too. Blood in properly maintained pool water poses no public health risk to swimmers according to the same code. Many hotels close and treat it as a formed stool anyway, for the guests' peace of mind. Either choice is defensible; make it in advance and say which one you made.

Whatever the type, the clock starts when the water is cleared, not when someone finally finds the test kit.

What treatment values apply, and where do they come from?#

They come from the CDC's Model Aquatic Health Code, a voluntary model code from a US agency, not from Turkish law, and your written protocol should quote them with exactly that label.

The conditions matter as much as the number: pH 7.5 or lower, water at 25 °C or higher, filtration running, free chlorine measured at several points, and only non-stabilised chlorine used to raise the level. Formed stool and vomit: raise free chlorine to 2.0 mg/L and hold it at least 25 minutes, or an equivalent concentration and time, doubling the time when cyanuric acid is present. Diarrheal stool: raise free chlorine to at least 20 mg/L and hold it at least 12.75 hours, or use secondary treatment such as ultraviolet or ozone.

With cyanuric acid in the water the code offers three routes. First, bring cyanuric acid to 15 mg/L or below, by draining and refilling if needed, then hold 20, 30 or 40 mg/L free chlorine for at least 28, 18 or 8.5 hours. Second, use secondary treatment. Third, drain the pool completely. Dilution shortens the hold: starting from 30 mg/L cyanuric acid, draining half the water brings the same three options to about 25.2, 16.2 or 7.7 hours.

Have a pool adviser or water-treatment supplier sign the numbers you adopt. This article reports the model code; your hotel adopts it, in writing, before the season. For the everyday readings these values build on, see our guide to measuring and correcting pH and chlorine each day.

Does Turkish law set a procedure for feces, vomit or blood?#

No. The Regulation on the Health Principles for Swimming Pools (opens in a new tab) (Resmî Gazete, 6 March 2011, No. 27866) sets no specific procedure for contamination events; it closes pools on test results instead.

Article 13: a sample that fails the microbiological limits in Annex 3 stops the pool's operation until a new sample passes. A failed chemical result brings a written warning, and a stop if the repeat sample also fails. Article 14: disinfection is carried out by the operator or on its behalf, only with disinfectants and pool chemicals licensed by the Ministry of Health, and stabilised chlorine compounds only in outdoor pools.

Annex 1 limits: free chlorine 1 to 1.5 mg/L in indoor pools and 1 to 3 mg/L outdoors, pH 6.5 to 7.8, combined chlorine at most 0.2 mg/L, cyanuric acid at most 100 mg/L. Article 16 lets the Ministry issue secondary rules to apply the regulation, and Article 17 refers breaches to Public Health Law No. 1593. Confirm your own case, and any local practice, with your adviser and your provincial health directorate.

The practical consequence: the procedure you follow on the day is the one your hotel wrote, so write it, sign it and train on it rather than waiting for a rule that does not exist. Our article on the pool health regulation as a checklist covers the wider duties on water, staff and records.

Filters, backwash, the reopening test and the record#

Keep the plant running through the whole contact time, backwash afterwards, and reopen only on measured free chlorine and pH readings at several points, signed by the named operator.

Do not switch off recirculation during treatment. The chlorine has to be distributed through the whole body of water, and the filter has to keep working while it is. Backwash after the event, and check with your water and sewerage authority where the backwash water may go; the pool regulation we read does not cover it, so confirm the rule with your water and sewerage authority and your discharge permit.

Test free chlorine at several points rather than one, and record pH, temperature and cyanuric acid with it. One strip reading at the deep end is not a reopening test. Reopen only when the concentration and the contact time are both met, and a second reading confirms the first.

The record should hold the time of closure, the contamination type, who decided, the readings before and after, the treatment applied, the reopening time and a signature. Close the loop with housekeeping and the front desk: the pool sign, the guest app and the day sheet should all carry the same reopening time. For what to keep alongside it, see what to record after an accident, a theft or a dispute; if the water was already poor before the incident, start with finding the cause of cloudy or green pool water.

What do you tell the guests?#

One short, factual line, identical from every staff member, with a reopening time you can actually stand behind.

The script: the pool is closed for water treatment, and we expect to reopen at a stated time. Nothing about who, nothing about what, nothing about a child. Personal data rules apply to what your staff say as much as to what they write. Never name or describe the guest involved, and never confirm a guess.

Put the time on the sign at the gate. A sign without a time invites the same question every ten minutes. Offer the alternative before it is asked for: the second pool, the beach, the shaded area. It is a small thing that decides how the afternoon is remembered. Give the same line to the pool bar and the animation team, who will be asked before reception is. Our guide to pool rules, hours and the signs guests read covers the signage side.

What to do next#

Write the one-page protocol this week: the four contamination types, the values you adopt labelled as the CDC model code, the names of who may close a pool on each shift, and the fields of the incident record. Have your pool adviser and your general manager sign it, then run it once as a drill before the season starts, because the first real incident will not wait for someone to read a folder.