Labour Councillor Steve McGinnity is helping Thornton residents to fight a flood that has been making their lives a misery for years.
Residents on Rimrose Valley Road approached Manor Ward's Cllr McGinnity about the problem of water flooding into their gardens from the field behind their homes..
They told the Labour Councillor that flooding had been a problem since the estate was built.
Many have resorted to taking steps themselves to resolve the problem, which has included raising the height of their gardens and creating walls to act as a dam to stop the flowing water. One resident even installed decking across the full length and width of his garden so he could still get out into his back.
The problem has been so bad, that the residents say that this week is the first time they have been able to step into their gardens in 18 months.
Cllr McGinnity this week called a site visit with Sefton's drainage experts and One Vision. What they found shocked the Manor Ward Labour Councillor.
Cllr McGinnity said: "This long-running problem is causing misery for these residents, all of whom say flooding has been an issue in all the time they have lived there.
"Some have lived there 14 or 15 years, but one lady in particular was telling me this has been a problem for 28 years.
"The experts from Sefton and One Vision made the site visit when we had the chance to look into many of the residents' gardens. What we saw and heard was really shocking.
"We could see the impact the water has had to the gardens, which have sunk. Despite the visit being on a warm, dry day, we could feel how the gardens are spongy. This week was the first time the water had abated enough for them to get out. Before hand, the gardens were like swamps.
"My big fear is that this persistent flooding is not only causing damage to the gardens, but also to the houses themselves. That is why I called the site visit."
Resident Jackie Martin said her garden has been constantly under inches of water for the last 18 months and this is the first time her two-year-old grandson Joel has been able to play out.
Jackie told Cllr McGinnity: "I've lived here for 14 years. The flooding has been a constant problem, but it's gotten worse and worse.
"This is the first time Joel has been able to play out in the garden. It's just not right.
"Every year from September through to the summer, the garden is flooded. But last year it just didn't go away.
"It has gotten to the stage where we just thought that it is something we'll have to live with. So I am really pleased that Cllr McGinnity and Sefton Council are looking into this."
Sefton's experts and One Vision staff are now carrying out a full investigation to get to the root cause of the flooding.
Cllr McGinnity said: "The site visit was very positive. Both Sefton and One Vision are working together to investigate the cause of the problem.
"Engineers are going out again to look at the drainage measures that are already in place to find out why the water is not draining away, but instead flowing into gardens and collecting there.
"I will be getting full updates from the engineers as they carry out their investigations and I will relay that information back to the residents to ensure they are kept fully informed."