Homes in Southampton, Romsey, Eastleigh, Totton, and parts of the New Forest have experienced a loss of water or low pressures.
The water firm apologised to impacted customers and said on Thursday morning it had worked through the night to fix the issue.
Some homes will see their water supplies restored on Thursday, but for others the issue might continue until the weekend, the firm warned customers.
The increase means bills will go up by around £31 a year over the next five years, with average bills to rise to £588 by 2030, up from current levels of £436, regulator Ofwat said.
The retired nurse, who lives with an autoimmune condition, is registered on the firm’s priority list and was told she could expect bottled water to be delivered to her home by 7pm, but claims she did not receive any.
Ms Woolger lives with ulcerative colitis, which is an inflammatory bowel disease that can cause ulcers, and psoriatic arthritis, and said her autoimmune conditions can make her “more prone to infections”.
“I do need water because if I have a flare or anything, I’m using the toilet much more frequently. If I haven’t got water it’s really unpleasant,” she explained.
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Read MoreMs Woolger said she is relying on using bottled water that she received last year when her supply stopped following a contamination risk.
“I think (Southern Water) need to sort out their actual logistical support,” she said.
Southern Water was approached for comment regarding the claims made by Ms Woolger.
The water company reported long queues at bottled stations on Wednesday.
Customers have been urged to avoid travelling to “other potential bottled water station locations until we confirm they are open”.
The company apologised for the “ongoing disruption”.
“We are working towards all customers being back in supply by the weekend.”
Thousands of residents in Sutton, Morden and Epsom were thought to have experienced a loss of water or low pressure due to the issue.
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