Changes

<li>Calculate the required area</li>

<li>Calculate the required area</li>

<HalfLeft>

<ThirdLeft>

<panelWarning>

<panelWarning>

[[Media:Infiltration Sizing.xlsx|Download xlsx calculation tool]]

<strong>[[Media:Infiltration Sizing.xlsx|Download xlsx calculation tool]]</strong>

</panelWarning>

</panelWarning>

</HalfLeft><HalfRight>

</ThirdLeft><TwoThirdRight></TwoThirdRight><clearFix></clearFix>

</HalfRight>

<clearFix></clearFix>

<clearFix></clearFix>