Web Forms :: Web.sitemap - Add Extra Submenu

Whenever i add a exta submenu to:

<siteMapNode url="~/washroom/default.aspx" title="Washroom Supply" description="Washroom Supplies">
<siteMapNode url="~/washroom/example.aspx" title="Example" description="Example" />
</siteMapNode>

I get the error page.I managed to add one sub menu(example) but there is no way that I can add more. Everything looks ok but for some reason dosent work. That's the whole map:

<?xml version="1.0" encoding="utf-8" ?>
<siteMap xmlns=[URL]
<siteMapNode url="/" title="Home" description="Home page">
<siteMapNode url="~/cleaning/default.aspx" title="Cleaning" description="Cleaning Services">
<siteMapNode url="~/cleaning/office.aspx" title="Office Cleaning" description="Office Cleaning" />
<siteMapNode url="~/cleaning/ceiling.aspx" title="Ceiling Cleaning" description="Ceiling Cleaning" />
<siteMapNode url="~/cleaning/awning.aspx" title="Awning and Canopies" description="Awning and Canopies" />
<siteMapNode url="~/cleaning/pubs.aspx" title="Pubs, Bars and Clubs" description="Pubs, Bars and Clubs" />
<siteMapNode url="~/cleaning/communal.aspx" title="Communal Areas" description="Communal Areas" />
<siteMapNode url="~/cleaning/carpet.aspx" title="Carpet and Upholstery" description="Carpet and Upholstery" />
<siteMapNode url="~/cleaning/window.aspx" title="Window Cleaning" description="Window Cleaning" />
<siteMapNode url="~/cleaning/pressure.aspx" title="Pressure Washing" description="Pressure Washing" />
</siteMapNode>
<siteMapNode url="~/distribution/default.aspx" title="Distribution" description="Distribution Services">
<siteMapNode url="~/distribution/price.aspx" title="Price Guide" description="Price Guide" />
<siteMapNode url="~/distribution/areas.aspx" title="Areas We Cover" description="Areas We Cover" />
<siteMapNode url="~/distribution/collection.aspx" title="Free Collection" description="Free Collection" />
</siteMapNode>
<siteMapNode url="~/office/default.aspx" title="Office Supply" description="Office Supplies" />
<siteMapNode url="~/washroom/default.aspx" title="Washroom Supply" description="Washroom Supplies">
<siteMapNode url="~/washroom/example.aspx" title="Example" description="Example" />
</siteMapNode>
</siteMapNode>
</siteMap>