Wastewater leaves a property through a lateral line, which is a pipe that connects drains and the septic tank or public sewer main. As time passes, earthquake damage or the shifting of soil can crack or separate a lateral line. This allows the roots from trees nearby to push through them and completely block them. Two ways to sort this problem out are pipe relining and not planting trees with roots capable of pushing through pipes.
But if you really want trees in your property, know that different tree species have different kinds of root systems. While some trees have compact and fine root systems, most others have root systems which extend outward and downward. When fully-developed, they will have almost the same width as the tree canopy and are as deep as the tree’s height. For this reason, your safest bet is to keep trees at least a hundred feet from the sewer system or drain field.
Poplars, cottonwoods, and aspens have enormous and wide-spreading roots, hence making them the worst to plant not only near sewer lines, septic tanks, and drain fields, but also near house foundations and driveways. Their roots help them survive in their natural habitat, and so they should never be planted in urban areas.
Elms, which are under the Ulmaceae plant family, are deciduous and semi-deciduous. One species is so popular in parks, city streets, and landscapes due to their elegant appearance and the amazing shade they provide. Their roots, however, can spread out and go deep, and can exert enough pressure to invade sewer systems.
Willow roots do not just grow aggressively, they also tenaciously seek water. For this reason, they should just be planted along ponds or banks of streams, and not near sewer systems.
Other Trees You Should be Avoided
You should also avoid planting beech, fig, banyan, cypress, maple, walnut, and bamboo near the drain field and septic tank. Fruit-bearing trees, beneficial they may be, must also be planted far from the sewage system of the property. The tree may be contaminated by any leaking sewage, and when this happens, the fruit may end up contaminated as well.
‘What If I Have Trees Near Sewer Systems?’
In this case, your best bet is to have the tree moved somewhere, although you can take advantage of another option called pipe relining as well. The latter option is best if the sewer pipes in your area are old and you suspect that they may be worn out. It involves the insertion and blowing up of a fiberglass tube in the old pipe, and this fiberglass tube will serve as the new lining of the old pipe.
No digging is involved in the process, and for this reason, it a solution that saves you more money and time compared to the old method of sorting out old and worn sewer pipes. But in order to truly reap the benefits of this service, it is essential that you only hire those who are most qualified and equipped for the job.