The number of people hit by a sickness outbreak after swimming at Splashes is into triple figures, as questions about its cleanliness are raised.

Dozens of people, mostly young children, have been violently ill following a visit to the Rainham pool on Friday, during half-term.

Some of the victims have been so unwell they have been admitted to Medway hospital with severe dehydration.

The number of people hit by the stomach bug now stands at around 120. Some children have relapsed in the last few days after first being ill over the weekend.

Medway Council has launched an investigation and is working with Public Health England.

The pool was shut for most of the day on Monday while a deep clean was carried out and chlorine levels have been increased.

Samples of the water have been sent away for testing and environmental health officers have been collecting samples from some of the families who have been unwell.

Gemma Hutley-Reynolds’ nine-year-old daughter Faye is one of the worst affected. She vomited 19 times in four hours on Saturday and then had to be taken to A&E in the early hours of yesterday morning when she started being sick again.

Her mum said: “We have had the norovirus in our house, but this is far worse. I have never seen anything so bad.”

Parents are asking questions about the cleanliness of the centre, amid complaints about a bad smell and seeing faeces in the changing rooms.

There are reports of a visitor vomiting in the pool on Friday and it not being cleared up properly - something the centre management has denied.

The pool hosted a sold-out Halloween party on Friday evening but workers complained to customers about being understaffed.

Samantha Kemsley’s one-year-old daughter had to be admitted to hospital after being sick 15 times. She, like many others has vowed never to go back to the pool.

She said: “It is not worth the risk. Splashes seems to be notorious for its lack of hygiene – the stench of urine is overpowering and there is a lack of changing rooms and a lack of bins.

"Splashes needs to have a better hygiene system in place to prevent this from happening again.”

Following her complaint, management told Mrs Kemsley: “Tests are being carried out to see if we can determine what type of infection has caused this illness, which will help us understand how it was introduced to Splashes on Friday and how it spread so quickly.”